{"title":"Calcite Crystal \u0026 Mineral Specimens","description":"\u003cp data-start=\"793\" data-end=\"1140\" class=\"PDq2pG_selectionAnchorContainer\"\u003eDiscover our collection of natural calcite crystal specimens featuring remarkable crystal habits, exceptional transparency, and striking mineral combinations from world-renowned localities. Calcite is one of the most diverse and visually fascinating minerals, occurring in an incredible range of colors, crystal forms, and geological environments.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1142\" data-end=\"1445\"\u003eOur inventory includes collector-quality dogtooth calcite, cave calcite, UV reactive calcite, honey calcite, and unique combination specimens featuring minerals such as chalcedony, quartz, fluorite, and zeolites. Every specimen is individually photographed, and you will receive the exact crystal shown.\u003c\/p\u003e\n\u003cp data-start=\"1447\" data-end=\"1830\"\u003eHighly valued by mineral collectors for its wide variety of crystal habits and natural beauty, calcite forms some of the most recognizable cabinet specimens in the hobby. From sharply defined scalenohedral \"dogtooth\" crystals to sparkling drusy formations and dramatic association pieces, each specimen is carefully selected for its aesthetics, crystal quality, and display presence.\u003c\/p\u003e\n\u003cp data-start=\"1832\" data-end=\"2017\"\u003eWhether you're expanding an advanced mineral collection or searching for a distinctive display piece, our calcite specimens offer exceptional natural beauty and geological significance.\u003c\/p\u003e\n\u003cp data-start=\"2019\" data-end=\"2248\"\u003eProfessionally packaged and shipped from Colorado. You will receive the exact specimen shown. Every order is backed by our commitment to quality and customer satisfaction. Thank you for supporting our family-owned small business.\u003c\/p\u003e","products":[{"product_id":"galena-and-quartz-cluster-bulgaria-0-65-lbs","title":"Galena, Quartz \u0026 Manganoan Calcite Cluster – 9th September Mine, Bulgaria – 0.65 lbs","description":"\u003cp data-start=\"116\" data-end=\"422\"\u003eThis exceptional \u003cstrong data-start=\"133\" data-end=\"229\"\u003eGalena, Quartz, and Manganoan Calcite cluster from the historic 9th September Mine, Bulgaria\u003c\/strong\u003e weighs \u003cstrong data-start=\"237\" data-end=\"249\"\u003e0.65 lbs\u003c\/strong\u003e and measures approximately \u003cstrong data-start=\"277\" data-end=\"305\"\u003e3.5 in x 1.7 in x 3.4 in\u003c\/strong\u003e, featuring a beautiful combination of metallic galena, sparkling quartz, and a rare fluorescent calcite association.\u003c\/p\u003e\n\u003cp data-start=\"424\" data-end=\"729\"\u003eThe specimen showcases bright metallic galena crystals with classic geometric crystal structure nestled among shimmering quartz crystal growth. Adding further collector appeal is a naturally associated \u003cstrong data-start=\"626\" data-end=\"655\"\u003eManganoan Calcite crystal\u003c\/strong\u003e, which fluoresces a vibrant red color when exposed to \u003cstrong data-start=\"710\" data-end=\"728\"\u003e365nm UV light\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"731\" data-end=\"1077\"\u003eSourced from old stock material from the renowned 9th September Mine, this specimen represents a classic Bulgarian mineral association highly sought after by collectors. The contrast between metallic galena, sparkling quartz, and UV-reactive calcite creates a display piece that is equally impressive under both standard and ultraviolet lighting.\u003c\/p\u003e\n\u003cp data-start=\"1079\" data-end=\"1093\"\u003e\u003cstrong data-start=\"1079\" data-end=\"1091\"\u003eDetails:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1094\" data-end=\"1423\"\u003e\n\u003cli data-section-id=\"1sifv2t\" data-start=\"1094\" data-end=\"1142\"\u003eMaterial: Galena, Quartz \u0026amp; Manganoan Calcite\u003c\/li\u003e\n\u003cli data-section-id=\"13j9qtk\" data-start=\"1143\" data-end=\"1183\"\u003eOrigin: 9th September Mine, Bulgaria\u003c\/li\u003e\n\u003cli data-section-id=\"1hrfq8i\" data-start=\"1184\" data-end=\"1204\"\u003eWeight: 0.65 lbs\u003c\/li\u003e\n\u003cli data-section-id=\"1iegfv3\" data-start=\"1205\" data-end=\"1247\"\u003eDimensions: Approx. 3.5” x 1.7” x 3.4”\u003c\/li\u003e\n\u003cli data-section-id=\"1p52bat\" data-start=\"1248\" data-end=\"1279\"\u003eHistoric old stock material\u003c\/li\u003e\n\u003cli data-section-id=\"11flcuo\" data-start=\"1280\" data-end=\"1322\"\u003eIncludes fluorescent Manganoan Calcite\u003c\/li\u003e\n\u003cli data-section-id=\"b7yhpl\" data-start=\"1323\" data-end=\"1370\"\u003eCalcite fluoresces red under 365nm UV light\u003c\/li\u003e\n\u003cli data-section-id=\"r8w51f\" data-start=\"1371\" data-end=\"1401\"\u003eNatural crystal formations\u003c\/li\u003e\n\u003cli data-section-id=\"50ug38\" data-start=\"1402\" data-end=\"1423\"\u003eExact piece shown\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1425\" data-end=\"1749\"\u003e\u003cstrong data-start=\"1425\" data-end=\"1449\"\u003eMineralogical Notes:\u003c\/strong\u003e\u003cbr data-start=\"1449\" data-end=\"1452\"\u003eGalena is a lead sulfide mineral known for its metallic luster and cubic crystal habit. Quartz commonly forms in hydrothermal vein systems alongside galena. Manganoan Calcite is a manganese-bearing variety of calcite famous for its bright red to pink fluorescence under longwave ultraviolet light.\u003c\/p\u003e\n\u003cp data-start=\"1751\" data-end=\"1970\"\u003e\u003cstrong data-start=\"1751\" data-end=\"1816\"\u003eMetaphysical Associations (for those who work with crystals):\u003c\/strong\u003e\u003cbr data-start=\"1816\" data-end=\"1819\"\u003eGalena is often associated with grounding and stability, quartz with clarity and amplification, and calcite with emotional balance and positive energy.\u003c\/p\u003e\n\u003cp data-start=\"1972\" data-end=\"2096\"\u003eShips from Colorado.\u003cbr data-start=\"1992\" data-end=\"1995\"\u003eExact item shown.\u003cbr data-start=\"2012\" data-end=\"2015\"\u003eWe back every purchase. Thank you for supporting our family-owned small business.\u003c\/p\u003e","brand":"Serenity Soul Stones","offers":[{"title":"Default Title","offer_id":48943478440186,"sku":null,"price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/2328\/8826\/files\/rn-image_picker_lib_temp_8fc4d80b-4876-4b7b-aa04-bf6cf342c6a7.jpg?v=1780077604"},{"product_id":"manganoan-calcite-heart-from-peru-2-1-oz","title":"Manganoan Calcite Heart – UV Reactive – Peru – 2.1 oz","description":"\u003cp data-start=\"85\" data-end=\"308\"\u003eThis beautiful \u003cstrong data-start=\"100\" data-end=\"137\"\u003eManganoan Calcite Heart from Peru\u003c\/strong\u003e weighs approximately \u003cstrong data-start=\"159\" data-end=\"169\"\u003e2.1 oz\u003c\/strong\u003e and measures \u003cstrong data-start=\"183\" data-end=\"212\"\u003e1.8 in x 1.7 in x 0.87 in\u003c\/strong\u003e, featuring a polished heart shape and exceptional fluorescent response under ultraviolet light.\u003c\/p\u003e\n\u003cp data-start=\"310\" data-end=\"636\"\u003eUnder normal lighting, the specimen displays the soft pink tones characteristic of manganese-rich calcite. When exposed to \u003cstrong data-start=\"433\" data-end=\"451\"\u003e365nm UV light\u003c\/strong\u003e, the heart transforms dramatically, glowing with a \u003cstrong data-start=\"503\" data-end=\"539\"\u003evibrant pink to red fluorescence\u003c\/strong\u003e that makes Manganoan Calcite one of the most sought-after fluorescent minerals among collectors.\u003c\/p\u003e\n\u003cp data-start=\"638\" data-end=\"940\"\u003eThe polished heart carving enhances both the natural color and the UV performance of the material, creating a display piece that is equally attractive in daylight and under ultraviolet illumination. Its compact size makes it perfect for mineral collections, fluorescent displays, desks, or gift giving.\u003c\/p\u003e\n\u003cp data-start=\"942\" data-end=\"956\"\u003e\u003cstrong data-start=\"942\" data-end=\"954\"\u003eDetails:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"957\" data-end=\"1194\"\u003e\n\u003cli data-section-id=\"12bckh2\" data-start=\"957\" data-end=\"988\"\u003eMaterial: Manganoan Calcite\u003c\/li\u003e\n\u003cli data-section-id=\"3vc47o\" data-start=\"989\" data-end=\"1005\"\u003eOrigin: Peru\u003c\/li\u003e\n\u003cli data-section-id=\"1o2tl5s\" data-start=\"1006\" data-end=\"1032\"\u003eWeight: Approx. 2.1 oz\u003c\/li\u003e\n\u003cli data-section-id=\"13djrq0\" data-start=\"1033\" data-end=\"1076\"\u003eDimensions: Approx. 1.8” x 1.7” x 0.87”\u003c\/li\u003e\n\u003cli data-section-id=\"1m7iy6c\" data-start=\"1077\" data-end=\"1103\"\u003ePolished heart carving\u003c\/li\u003e\n\u003cli data-section-id=\"125d92p\" data-start=\"1104\" data-end=\"1136\"\u003eStrong 365nm UV fluorescence\u003c\/li\u003e\n\u003cli data-section-id=\"1lbvumg\" data-start=\"1137\" data-end=\"1172\"\u003eVibrant pink to red UV response\u003c\/li\u003e\n\u003cli data-section-id=\"50ug38\" data-start=\"1173\" data-end=\"1194\"\u003eExact piece shown\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1196\" data-end=\"1405\"\u003e\u003cstrong data-start=\"1196\" data-end=\"1220\"\u003eMineralogical Notes:\u003c\/strong\u003e\u003cbr data-start=\"1220\" data-end=\"1223\"\u003eManganoan Calcite is a manganese-bearing variety of calcite. The manganese content is responsible for the brilliant pink to red fluorescence visible under longwave ultraviolet light.\u003c\/p\u003e\n\u003cp data-start=\"1407\" data-end=\"1605\"\u003e\u003cstrong data-start=\"1407\" data-end=\"1472\"\u003eMetaphysical Associations (for those who work with crystals):\u003c\/strong\u003e\u003cbr data-start=\"1472\" data-end=\"1475\"\u003eManganoan Calcite is often associated with compassion, emotional healing, self-love, heart-centered energy, and emotional balance.\u003c\/p\u003e\n\u003cp data-start=\"1607\" data-end=\"1768\"\u003eShips from Colorado.\u003cbr data-start=\"1627\" data-end=\"1630\"\u003eExact item shown.\u003cbr data-start=\"1647\" data-end=\"1650\"\u003eBest viewed with a 365nm UV light.\u003cbr data-start=\"1684\" data-end=\"1687\"\u003eWe back every purchase. Thank you for supporting our family-owned small business.\u003c\/p\u003e","brand":"Serenity Soul Stones","offers":[{"title":"Default Title","offer_id":48950351692026,"sku":null,"price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/2328\/8826\/files\/rn-image_picker_lib_temp_0ecee51e-f295-49c5-853e-baa3d8ea15f1.jpg?v=1780327592"},{"product_id":"stilbite","title":"Stilbite Formation with UV Reactive Calcite Druzy – Maharashtra, India – 2.88 lbs","description":"\u003cp data-start=\"127\" data-end=\"374\"\u003eThis exceptional \u003cstrong data-start=\"144\" data-end=\"206\"\u003eWhite and Cream Stilbite formation from Maharashtra, India\u003c\/strong\u003e weighs \u003cstrong data-start=\"214\" data-end=\"226\"\u003e2.88 lbs\u003c\/strong\u003e and measures approximately \u003cstrong data-start=\"254\" data-end=\"282\"\u003e6.5 in x 5.2 in x 2.7 in\u003c\/strong\u003e, featuring elegant zeolite crystal growth and a hidden surprise for UV mineral enthusiasts.\u003c\/p\u003e\n\u003cp data-start=\"376\" data-end=\"678\"\u003eThe specimen showcases beautifully layered \u003cstrong data-start=\"419\" data-end=\"456\"\u003ewhite and cream stilbite crystals\u003c\/strong\u003e arranged in classic fan-like formations across the surface. Soft neutral tones and natural luster create an attractive display piece that highlights the delicate crystal architecture for which Indian stilbite is renowned.\u003c\/p\u003e\n\u003cp data-start=\"680\" data-end=\"954\"\u003eHidden within the formation are pockets of \u003cstrong data-start=\"723\" data-end=\"752\"\u003eUV-reactive calcite druzy\u003c\/strong\u003e, which reveal themselves under \u003cstrong data-start=\"784\" data-end=\"802\"\u003e365nm UV light\u003c\/strong\u003e. The calcite fluoresces with vibrant coloration, transforming the specimen from a classic zeolite display into an impressive fluorescent mineral piece.\u003c\/p\u003e\n\u003cp data-start=\"956\" data-end=\"1215\"\u003eCollected from the famous zeolite-producing region of Maharashtra, this specimen combines aesthetic display quality with an exciting ultraviolet response, making it equally desirable for both traditional mineral collectors and fluorescent mineral enthusiasts.\u003c\/p\u003e\n\u003cp data-start=\"1217\" data-end=\"1231\"\u003e\u003cstrong data-start=\"1217\" data-end=\"1229\"\u003eDetails:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1232\" data-end=\"1565\"\u003e\n\u003cli data-section-id=\"1fop2tq\" data-start=\"1232\" data-end=\"1285\"\u003eMaterial: Stilbite with UV Reactive Calcite Druzy\u003c\/li\u003e\n\u003cli data-section-id=\"1cr1fl7\" data-start=\"1286\" data-end=\"1316\"\u003eOrigin: Maharashtra, India\u003c\/li\u003e\n\u003cli data-section-id=\"z2z76b\" data-start=\"1317\" data-end=\"1337\"\u003eWeight: 2.88 lbs\u003c\/li\u003e\n\u003cli data-section-id=\"l2fomh\" data-start=\"1338\" data-end=\"1380\"\u003eDimensions: Approx. 6.5” x 5.2” x 2.7”\u003c\/li\u003e\n\u003cli data-section-id=\"13h7ry\" data-start=\"1381\" data-end=\"1428\"\u003eWhite and cream stilbite crystal formations\u003c\/li\u003e\n\u003cli data-section-id=\"9vki8a\" data-start=\"1429\" data-end=\"1473\"\u003eHidden fluorescent calcite druzy pockets\u003c\/li\u003e\n\u003cli data-section-id=\"qdzxby\" data-start=\"1474\" data-end=\"1514\"\u003eStrong response under 365nm UV light\u003c\/li\u003e\n\u003cli data-section-id=\"gmfggz\" data-start=\"1515\" data-end=\"1543\"\u003eNatural mineral specimen\u003c\/li\u003e\n\u003cli data-section-id=\"50ug38\" data-start=\"1544\" data-end=\"1565\"\u003eExact piece shown\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1567\" data-end=\"1842\"\u003e\u003cstrong data-start=\"1567\" data-end=\"1591\"\u003eMineralogical Notes:\u003c\/strong\u003e\u003cbr data-start=\"1591\" data-end=\"1594\"\u003eStilbite is a zeolite mineral known for its sheaf-like and fan-shaped crystal growth. The associated calcite druzy formed later within cavities of the host rock and contains trace elements that create fluorescence when exposed to ultraviolet light.\u003c\/p\u003e\n\u003cp data-start=\"1844\" data-end=\"2091\"\u003e\u003cstrong data-start=\"1844\" data-end=\"1909\"\u003eMetaphysical Associations (for those who work with crystals):\u003c\/strong\u003e\u003cbr data-start=\"1909\" data-end=\"1912\"\u003eStilbite is often associated with emotional balance, inner peace, and heart-centered energy, while calcite is linked to clarity, energy amplification, and positive transformation.\u003c\/p\u003e\n\u003cp data-start=\"2093\" data-end=\"2254\"\u003eShips from Colorado.\u003cbr data-start=\"2113\" data-end=\"2116\"\u003eExact item shown.\u003cbr data-start=\"2133\" data-end=\"2136\"\u003eBest viewed with a 365nm UV light.\u003cbr data-start=\"2170\" data-end=\"2173\"\u003eWe back every purchase. Thank you for supporting our family-owned small business.\u003c\/p\u003e","brand":"Serenity Soul Stones","offers":[{"title":"Default Title","offer_id":48950455533818,"sku":null,"price":87.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/2328\/8826\/files\/rn-image_picker_lib_temp_c161f41c-f0e5-4839-b821-c4ee6afbc342.jpg?v=1780333578"},{"product_id":"optical-calcite-1-02-lbs","title":"Optical Calcite (Iceland Spar Variety) – Maharashtra, India – UV Reactive – 1.02 lbs","description":"\u003cp data-start=\"116\" data-end=\"380\"\u003eThis exceptional \u003cstrong data-start=\"133\" data-end=\"185\"\u003eOptical Calcite specimen from Maharashtra, India\u003c\/strong\u003e weighs \u003cstrong data-start=\"193\" data-end=\"205\"\u003e1.02 lbs\u003c\/strong\u003e and measures approximately \u003cstrong data-start=\"233\" data-end=\"261\"\u003e3.8 in x 2.7 in x 2.5 in\u003c\/strong\u003e, featuring outstanding clarity, strong rainbow refraction, and a vibrant fluorescent response under ultraviolet light.\u003c\/p\u003e\n\u003cp data-start=\"382\" data-end=\"762\"\u003eThe specimen displays the remarkable optical properties that have made Optical Calcite famous among mineral collectors and educators. Its high clarity allows for the classic \u003cstrong data-start=\"556\" data-end=\"600\"\u003edouble refraction (birefringence) effect\u003c\/strong\u003e, where text and objects viewed through the crystal appear doubled. Internal light dispersion also produces beautiful rainbow reflections throughout the specimen.\u003c\/p\u003e\n\u003cp data-start=\"764\" data-end=\"1028\"\u003eUnder \u003cstrong data-start=\"770\" data-end=\"788\"\u003e365nm UV light\u003c\/strong\u003e, the crystal exhibits a vivid \u003cstrong data-start=\"819\" data-end=\"839\"\u003ered fluorescence\u003c\/strong\u003e caused by naturally occurring manganese within the calcite structure. The combination of strong optical performance and UV reactivity makes this an especially desirable collector specimen.\u003c\/p\u003e\n\u003cp data-start=\"1030\" data-end=\"1171\"\u003eMaterial from Maharashtra, India is highly regarded for producing attractive optical calcite with excellent transparency and display quality.\u003c\/p\u003e\n\u003cp data-start=\"1173\" data-end=\"1187\"\u003e\u003cstrong data-start=\"1173\" data-end=\"1185\"\u003eDetails:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1188\" data-end=\"1510\"\u003e\n\u003cli data-section-id=\"wr2xtp\" data-start=\"1188\" data-end=\"1240\"\u003eMaterial: Optical Calcite (Iceland Spar Variety)\u003c\/li\u003e\n\u003cli data-section-id=\"1cr1fl7\" data-start=\"1241\" data-end=\"1271\"\u003eOrigin: Maharashtra, India\u003c\/li\u003e\n\u003cli data-section-id=\"1chdv02\" data-start=\"1272\" data-end=\"1292\"\u003eWeight: 1.02 lbs\u003c\/li\u003e\n\u003cli data-section-id=\"12jbqn5\" data-start=\"1293\" data-end=\"1335\"\u003eDimensions: Approx. 3.8” x 2.7” x 2.5”\u003c\/li\u003e\n\u003cli data-section-id=\"lvxadz\" data-start=\"1336\" data-end=\"1380\"\u003eStrong double refraction (birefringence)\u003c\/li\u003e\n\u003cli data-section-id=\"1sypuz8\" data-start=\"1381\" data-end=\"1406\"\u003eHigh clarity specimen\u003c\/li\u003e\n\u003cli data-section-id=\"pur7i0\" data-start=\"1407\" data-end=\"1446\"\u003eRainbow internal refraction effects\u003c\/li\u003e\n\u003cli data-section-id=\"ii7eh3\" data-start=\"1447\" data-end=\"1488\"\u003eRed fluorescence under 365nm UV light\u003c\/li\u003e\n\u003cli data-section-id=\"50ug38\" data-start=\"1489\" data-end=\"1510\"\u003eExact piece shown\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1512\" data-end=\"1795\"\u003e\u003cstrong data-start=\"1512\" data-end=\"1536\"\u003eMineralogical Notes:\u003c\/strong\u003e\u003cbr data-start=\"1536\" data-end=\"1539\"\u003eCalcite is a calcium carbonate mineral known for exhibiting one of the strongest natural birefringence effects found in minerals. Trace manganese within the crystal structure is responsible for the red fluorescence visible under longwave ultraviolet light.\u003c\/p\u003e\n\u003cp data-start=\"1797\" data-end=\"2042\"\u003e\u003cstrong data-start=\"1797\" data-end=\"1817\"\u003eCollector Notes:\u003c\/strong\u003e\u003cbr data-start=\"1817\" data-end=\"1820\"\u003eHigh-clarity optical calcite specimens that combine strong birefringence, rainbow refraction, and UV fluorescence are highly sought after by mineral collectors, fluorescent mineral enthusiasts, and educational collections.\u003c\/p\u003e\n\u003cp data-start=\"2044\" data-end=\"2197\"\u003e\u003cstrong data-start=\"2044\" data-end=\"2093\"\u003eCarefully packaged and shipped from Colorado.\u003c\/strong\u003e\u003cbr data-start=\"2093\" data-end=\"2096\"\u003eExact item shown.\u003cbr data-start=\"2113\" data-end=\"2116\"\u003eWe back every purchase. Thank you for supporting our family-owned small business.\u003c\/p\u003e","brand":"Serenity Soul Stones","offers":[{"title":"Default Title","offer_id":48963613622522,"sku":null,"price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/2328\/8826\/files\/rn-image_picker_lib_temp_c35d278d-feba-442d-b0b7-6a139a17b9b0.jpg?v=1780521492"},{"product_id":"extra-quality-amethyst-heart-geode-with-hematite-uv-reactive-manganoan-calcite-minas-gerais-brazil-62-21-lbs","title":"Extra Quality Amethyst Heart Geode with Hematite \u0026 UV Reactive Manganoan Calcite – Minas Gerais, Brazil – 62.21 lbs","description":"\u003cp\u003eThis extraordinary \u003cstrong\u003eExtra Quality Amethyst Heart Geode from Minas Gerais, Brazil\u003c\/strong\u003e weighs an impressive \u003cstrong\u003e62.21 lbs\u003c\/strong\u003e and measures approximately \u003cstrong\u003e15 inches wide x 9 inches deep x 19 inches tall on its custom steel display stand\u003c\/strong\u003e, making it a true centerpiece specimen for advanced collectors and luxury mineral displays.\u003c\/p\u003e\n\u003cp\u003eMasterfully carved into a heart shape and polished along the outer edges, this specimen showcases a protruding crystal structure packed with richly saturated purple amethyst crystals displaying exceptional luster, transparency, and crystal definition. Throughout the crystal pocket are sparkling metallic inclusions of \u003cstrong\u003ehematite\u003c\/strong\u003e, creating dramatic contrast against the vibrant amethyst crystal faces.\u003c\/p\u003e\n\u003cp\u003eA particularly desirable feature of this specimen is the presence of \u003cstrong\u003eUV reactive manganoan calcite\u003c\/strong\u003e. Under \u003cstrong\u003e365nm ultraviolet light\u003c\/strong\u003e, the calcite fluoresces vivid pink to red, revealing a hidden display characteristic that transforms the specimen after dark and adds another layer of collector appeal.\u003c\/p\u003e\n\u003cp\u003eThe perimeter of the geode displays beautiful natural agate banding that has been carefully polished to frame the crystal-lined center. The combination of deep purple amethyst, metallic hematite sparkle, fluorescent manganoan calcite, and strong agate structure creates an exceptionally aesthetic and uncommon display piece.\u003c\/p\u003e\n\u003cp\u003eSourced from \u003cstrong\u003eMinas Gerais, Brazil\u003c\/strong\u003e, one of the world's most famous mineral-producing regions, this specimen combines exceptional size, premium crystal quality, fluorescence, and artistic presentation into a single museum-worthy display.\u003c\/p\u003e\n\u003ch3\u003eDetails:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial: Amethyst, Hematite \u0026amp; Manganoan Calcite\u003c\/li\u003e\n\u003cli\u003eOrigin: Minas Gerais, Brazil\u003c\/li\u003e\n\u003cli\u003eWeight: 62.21 lbs\u003c\/li\u003e\n\u003cli\u003eDimensions: 15\" W × 9\" D × 19\" H (including stand)\u003c\/li\u003e\n\u003cli\u003eCustom-fitted steel display stand included\u003c\/li\u003e\n\u003cli\u003eFull edge polish\u003c\/li\u003e\n\u003cli\u003eHeart-shaped carving\u003c\/li\u003e\n\u003cli\u003eRich purple amethyst crystal cavity\u003c\/li\u003e\n\u003cli\u003eSparkling hematite inclusions\u003c\/li\u003e\n\u003cli\u003eStrong agate banding\u003c\/li\u003e\n\u003cli\u003eUV reactive manganoan calcite\u003c\/li\u003e\n\u003cli\u003eBright fluorescence under 365nm UV light\u003c\/li\u003e\n\u003cli\u003eMuseum-quality display specimen\u003c\/li\u003e\n\u003cli\u003eExact piece shown\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMineralogical Notes:\u003c\/h3\u003e\n\u003cp\u003eAmethyst is the purple variety of quartz colored by trace iron and natural irradiation. Minas Gerais is internationally recognized for producing some of the finest amethyst specimens in the world. Hematite contributes metallic sparkle and contrast throughout the crystal pocket, while manganoan calcite fluoresces brilliant pink-red under longwave ultraviolet light due to manganese within the crystal structure.\u003c\/p\u003e\n\u003ch3\u003eCollector Notes:\u003c\/h3\u003e\n\u003cp\u003eLarge heart geodes of this caliber are rarely encountered. The combination of premium Brazilian amethyst, polished agate framework, hematite inclusions, strong UV-reactive manganoan calcite, and a custom display stand makes this a showcase specimen suitable for high-end collections, galleries, luxury interiors, and serious mineral enthusiasts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCarefully packaged and shipped from Colorado.\u003c\/strong\u003e\u003cbr\u003eExact item shown.\u003cbr\u003eWe back every purchase. Thank you for supporting our family-owned small business.\u003c\/p\u003e","brand":"Serenity Soul Stones","offers":[{"title":"Default Title","offer_id":49023239651578,"sku":null,"price":1700.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/2328\/8826\/files\/20260617_154510.jpg?v=1781736311"},{"product_id":"white-chabazite-after-apophyllite-on-chalcedony-with-uv-reactive-calcite-maharashtra-india-1-67-lbs","title":"White Chabazite After Apophyllite on Chalcedony with UV Reactive Calcite – Maharashtra, India – 1.67 lbs","description":"\u003cp\u003eThis exceptional \u003cstrong\u003eWhite Chabazite After Apophyllite on Chalcedony from Maharashtra, India\u003c\/strong\u003e weighs \u003cstrong\u003e1.67 lbs\u003c\/strong\u003e and measures approximately \u003cstrong\u003e4 in x 2 in x 7 in\u003c\/strong\u003e, showcasing a remarkable mineral replacement specimen enhanced by naturally occurring UV-reactive calcite.\u003c\/p\u003e\n\u003cp\u003eThe specimen features bright white \u003cstrong\u003echabazite crystals that have replaced earlier apophyllite crystals\u003c\/strong\u003e, preserving the original crystal habit through a fascinating geological process known as pseudomorphism. These intricate crystal formations rise from a contrasting chalcedony matrix, creating a striking display of texture, color, and mineralogical complexity.\u003c\/p\u003e\n\u003cp\u003eAdding to its appeal, the specimen contains \u003cstrong\u003eUV-reactive calcite\u003c\/strong\u003e that fluoresces under \u003cstrong\u003e365nm ultraviolet light\u003c\/strong\u003e, revealing hidden mineral features not visible under normal lighting. This dual-display characteristic makes the specimen equally attractive in both daylight and UV mineral collections.\u003c\/p\u003e\n\u003cp\u003eIts tall vertical form and abundant crystal coverage create outstanding display presence, while the preserved crystal structures provide a visual record of the mineral replacement process that occurred during formation.\u003c\/p\u003e\n\u003ch3\u003eDetails:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial: White Chabazite After Apophyllite on Chalcedony\u003c\/li\u003e\n\u003cli\u003eAssociated Mineral: UV Reactive Calcite\u003c\/li\u003e\n\u003cli\u003eOrigin: Maharashtra, India\u003c\/li\u003e\n\u003cli\u003eWeight: 1.67 lbs\u003c\/li\u003e\n\u003cli\u003eDimensions: Approx. 4\" x 2\" x 7\"\u003c\/li\u003e\n\u003cli\u003eChabazite pseudomorph after apophyllite\u003c\/li\u003e\n\u003cli\u003eNatural chalcedony matrix\u003c\/li\u003e\n\u003cli\u003eUV reactive calcite inclusions\u003c\/li\u003e\n\u003cli\u003eFluoresces under 365nm UV light\u003c\/li\u003e\n\u003cli\u003eTall collector display specimen\u003c\/li\u003e\n\u003cli\u003eExact piece shown\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMineralogical Notes:\u003c\/h3\u003e\n\u003cp\u003eChabazite is a zeolite mineral commonly found within volcanic cavities. In rare cases, it replaces pre-existing apophyllite while preserving the original crystal shape, creating a pseudomorph. The associated chalcedony formed from silica-rich fluids, while calcite deposited during later mineralization stages and exhibits fluorescence under longwave ultraviolet light.\u003c\/p\u003e\n\u003ch3\u003eCollector Notes:\u003c\/h3\u003e\n\u003cp\u003ePseudomorph specimens are highly collectible due to the geological story they preserve. Examples featuring chabazite after apophyllite, attractive chalcedony matrix, and UV-reactive calcite are considerably less common and appeal to collectors of zeolites, fluorescent minerals, and unusual mineral associations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCarefully packaged and shipped from Colorado.\u003c\/strong\u003e\u003cbr\u003eExact item shown.\u003cbr\u003eWe back every purchase. Thank you for supporting our family-owned small business.\u003c\/p\u003e","brand":"Serenity Soul Stones","offers":[{"title":"Default Title","offer_id":49031656112378,"sku":null,"price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/2328\/8826\/files\/20260619_121449.jpg?v=1781900457"},{"product_id":"golden-uv-calcite-after-stilbite-with-natural-phosphorescence-maharashtra-india-0-11-lbs","title":"Golden UV Calcite After Stilbite with Natural Phosphorescence – Maharashtra, India – 0.11 lbs","description":"\u003cp data-start=\"123\" data-end=\"387\"\u003eThis rare and fascinating \u003cstrong data-start=\"149\" data-end=\"218\"\u003eGolden UV Calcite After Stilbite specimen from Maharashtra, India\u003c\/strong\u003e weighs \u003cstrong data-start=\"226\" data-end=\"238\"\u003e0.11 lbs\u003c\/strong\u003e and measures approximately \u003cstrong data-start=\"266\" data-end=\"292\"\u003e1.6 in x 1 in x 2.4 in\u003c\/strong\u003e, showcasing both a remarkable mineral replacement process and uncommon luminescent properties.\u003c\/p\u003e\n\u003cp data-start=\"389\" data-end=\"724\"\u003eThe specimen features \u003cstrong data-start=\"411\" data-end=\"485\"\u003egolden calcite that has replaced an earlier stilbite crystal formation\u003c\/strong\u003e, preserving the original crystal habit while creating a unique pseudomorph. The warm golden coloration and lustrous crystal surfaces make for an attractive display under normal lighting, while its luminescent behavior truly sets it apart.\u003c\/p\u003e\n\u003cp data-start=\"726\" data-end=\"1098\"\u003eUnder \u003cstrong data-start=\"732\" data-end=\"759\"\u003e365nm ultraviolet light\u003c\/strong\u003e, the calcite fluoresces brilliantly, revealing vibrant hidden color. Even more remarkable, the specimen exhibits \u003cstrong data-start=\"873\" data-end=\"900\"\u003enatural phosphorescence\u003c\/strong\u003e, continuing to glow briefly after the UV light source has been removed. This rare characteristic makes the specimen especially desirable among collectors of fluorescent and phosphorescent minerals.\u003c\/p\u003e\n\u003cp data-start=\"1100\" data-end=\"1269\"\u003eIts compact cabinet size and unusual combination of pseudomorphism, fluorescence, and phosphorescence make it an exceptional addition to any advanced mineral collection.\u003c\/p\u003e\n\u003ch3 data-section-id=\"86qg72\" data-start=\"1271\" data-end=\"1283\"\u003eDetails:\u003c\/h3\u003e\n\u003cul data-start=\"1284\" data-end=\"1608\"\u003e\n\u003cli data-section-id=\"bciepc\" data-start=\"1284\" data-end=\"1318\"\u003eMaterial: Calcite After Stilbite\u003c\/li\u003e\n\u003cli data-section-id=\"1c1u1pn\" data-start=\"1319\" data-end=\"1347\"\u003eOrigin: Maharashtra, India\u003c\/li\u003e\n\u003cli data-section-id=\"c7246p\" data-start=\"1348\" data-end=\"1366\"\u003eWeight: 0.11 lbs\u003c\/li\u003e\n\u003cli data-section-id=\"1e9q5mx\" data-start=\"1367\" data-end=\"1405\"\u003eDimensions: Approx. 1.6\" x 1\" x 2.4\"\u003c\/li\u003e\n\u003cli data-section-id=\"21upqy\" data-start=\"1406\" data-end=\"1449\"\u003eGolden calcite pseudomorph after stilbite\u003c\/li\u003e\n\u003cli data-section-id=\"1yjeqna\" data-start=\"1450\" data-end=\"1484\"\u003eFluorescent under 365nm UV light\u003c\/li\u003e\n\u003cli data-section-id=\"n5zvpt\" data-start=\"1485\" data-end=\"1518\"\u003eNatural phosphorescent response\u003c\/li\u003e\n\u003cli data-section-id=\"2aecvj\" data-start=\"1519\" data-end=\"1554\"\u003eRare luminescent mineral specimen\u003c\/li\u003e\n\u003cli data-section-id=\"1vovx57\" data-start=\"1555\" data-end=\"1588\"\u003eCollector-quality display piece\u003c\/li\u003e\n\u003cli data-section-id=\"907hf8\" data-start=\"1589\" data-end=\"1608\"\u003eExact piece shown\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1hjhngg\" data-start=\"1610\" data-end=\"1634\"\u003eMineralogical Notes:\u003c\/h3\u003e\n\u003cp data-start=\"1635\" data-end=\"2070\"\u003eCalcite commonly forms through secondary mineralization processes and can occasionally replace earlier minerals while preserving their external crystal structure. This process creates a pseudomorph, providing evidence of the specimen's geological history. Certain calcite specimens contain activator elements that allow them to fluoresce under ultraviolet light and, more rarely, exhibit phosphorescence after the UV source is removed.\u003c\/p\u003e\n\u003ch3 data-section-id=\"6lkfss\" data-start=\"2072\" data-end=\"2092\"\u003eCollector Notes:\u003c\/h3\u003e\n\u003cp data-start=\"2093\" data-end=\"2384\"\u003ePhosphorescent mineral specimens are considerably less common than standard fluorescent minerals. Examples combining calcite pseudomorphism, strong UV response, and visible afterglow are highly sought after by collectors specializing in luminescent minerals and unusual mineral associations.\u003c\/p\u003e\n\u003cp data-start=\"2386\" data-end=\"2539\"\u003e\u003cstrong data-start=\"2386\" data-end=\"2435\"\u003eCarefully packaged and shipped from Colorado.\u003c\/strong\u003e\u003cbr data-start=\"2435\" data-end=\"2438\"\u003eExact item shown.\u003cbr data-start=\"2455\" data-end=\"2458\"\u003eWe back every purchase. Thank you for supporting our family-owned small business.\u003c\/p\u003e","brand":"Serenity Soul Stones","offers":[{"title":"Default Title","offer_id":49067500077306,"sku":null,"price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/2328\/8826\/files\/20260624_094954.jpg?v=1782320737"},{"product_id":"honey-optical-calcite-maharashtra-india-45-grams","title":"Honey Optical Calcite – Maharashtra, India – 45 grams","description":"\u003cp data-start=\"81\" data-end=\"391\" class=\"PDq2pG_selectionAnchorContainer\"\u003eA beautiful \u003cstrong data-start=\"93\" data-end=\"118\"\u003eHoney Optical Calcite\u003c\/strong\u003e crystal from Maharashtra, India, displaying exceptional transparency, warm golden coloration, and classic rhombohedral cleavage. This freestanding crystal exhibits the remarkable optical properties that have made calcite one of the most recognizable minerals in the world.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"393\" data-end=\"791\"\u003eThe rich honey-gold color enhances the crystal's natural clarity, allowing light to pass through the specimen and beautifully illuminate its internal structure. Smooth cleavage faces catch and reflect light from every angle, while the transparent body showcases the distinctive optical characteristics that make optical calcite a favorite among collectors, educators, and mineral enthusiasts alike.\u003c\/p\u003e\n\u003cp data-start=\"793\" data-end=\"961\"\u003eWhether displayed under natural light or used to demonstrate calcite's famous double refraction, this specimen is both scientifically fascinating and visually striking.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1a3ueyz\" data-start=\"963\" data-end=\"980\"\u003eSpecifications\u003c\/h2\u003e\n\u003cp data-start=\"982\" data-end=\"1187\"\u003e\u003cstrong data-start=\"982\" data-end=\"994\"\u003eMineral:\u003c\/strong\u003e Honey Optical Calcite\u003cbr data-start=\"1016\" data-end=\"1019\"\u003e\u003cstrong data-start=\"1019\" data-end=\"1032\"\u003eLocality:\u003c\/strong\u003e Maharashtra, India\u003cbr data-start=\"1051\" data-end=\"1054\"\u003e\u003cstrong data-start=\"1054\" data-end=\"1065\"\u003eWeight:\u003c\/strong\u003e 45 grams (0.10 lbs)\u003cbr data-start=\"1085\" data-end=\"1088\"\u003e\u003cstrong data-start=\"1088\" data-end=\"1103\"\u003eDimensions:\u003c\/strong\u003e 1.5 × 1.5 × 0.6 inches\u003cbr data-start=\"1126\" data-end=\"1129\"\u003e\u003cstrong data-start=\"1129\" data-end=\"1143\"\u003eCondition:\u003c\/strong\u003e Natural specimen\u003cbr data-start=\"1160\" data-end=\"1163\"\u003e\u003cstrong data-start=\"1163\" data-end=\"1187\"\u003eExact specimen shown\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"pk2g81\" data-start=\"1189\" data-end=\"1209\"\u003eAbout the Mineral\u003c\/h2\u003e\n\u003cp data-start=\"1211\" data-end=\"1566\"\u003eCalcite (CaCO₃) is one of the most abundant minerals on Earth and is renowned for its perfect rhombohedral cleavage and strong birefringence (double refraction). Transparent varieties such as optical calcite split incoming light into two separate rays, producing the famous doubled image effect that has fascinated scientists and collectors for centuries.\u003c\/p\u003e\n\u003cp data-start=\"1568\" data-end=\"1783\"\u003eHoney-colored calcite develops its warm golden hue through trace mineral impurities incorporated during crystal growth while retaining the exceptional optical clarity characteristic of high-quality calcite crystals.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1punl39\" data-start=\"1785\" data-end=\"1803\"\u003eCollector Notes\u003c\/h2\u003e\n\u003cp data-start=\"1805\" data-end=\"2075\"\u003eTransparent Honey Optical Calcite is prized for its combination of beauty and scientific significance. Its brilliant transparency, warm golden color, and remarkable optical properties make it equally at home in a mineral cabinet, educational collection, or display case.\u003c\/p\u003e\n\u003cp data-start=\"2077\" data-end=\"2261\"\u003eWhether admired for its crystal form, used to demonstrate birefringence, or appreciated simply for its natural beauty, this specimen is an excellent addition to any mineral collection.\u003c\/p\u003e\n\u003cp data-start=\"2263\" data-end=\"2313\"\u003eProfessionally packaged and shipped from Colorado.\u003c\/p\u003e\n\u003cp data-start=\"2315\" data-end=\"2361\"\u003eYou will receive the \u003cstrong data-start=\"2336\" data-end=\"2361\"\u003eexact specimen shown.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"2363\" data-end=\"2498\"\u003eEvery order is backed by our commitment to quality and customer satisfaction. Thank you for supporting our family-owned small business.\u003c\/p\u003e","brand":"Serenity Soul Stones","offers":[{"title":"Default Title","offer_id":49174013444346,"sku":null,"price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/2328\/8826\/files\/20260630_170543.jpg?v=1782860932"},{"product_id":"mangano-calcite-with-rainbow-pyrite-huanzala-mine-peru-77-grams","title":"Mangano Calcite with Rainbow Pyrite – Huanzala Mine, Peru - 77 grams","description":"\u003cp data-start=\"85\" data-end=\"548\" class=\"PDq2pG_selectionAnchorContainer\"\u003eAn exceptional collector specimen featuring brilliant \u003cstrong data-start=\"139\" data-end=\"169\"\u003emanganoan calcite crystals\u003c\/strong\u003e beautifully accented by iridescent \u003cstrong data-start=\"205\" data-end=\"223\"\u003erainbow pyrite\u003c\/strong\u003e from Peru. Under normal lighting, the specimen displays sharp translucent calcite crystals emerging from a contrasting white matrix with vivid metallic flashes of naturally tarnished pyrite. Under shortwave UV light, the manganoan calcite erupts into an intense neon pink-red fluorescence, creating an unforgettable display.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"550\" data-end=\"870\"\u003eThe combination of crystallized manganoan calcite, colorful rainbow pyrite, and dramatic UV response makes this an outstanding display piece for both mineral collectors and fluorescent mineral enthusiasts. The fluorescence is exceptionally bright and uniform, ranking among the stronger examples seen from this locality.\u003c\/p\u003e\n\u003chr data-start=\"872\" data-end=\"875\"\u003e\n\u003ch2 data-section-id=\"1a3ueyz\" data-start=\"877\" data-end=\"894\"\u003eSpecifications\u003c\/h2\u003e\n\u003cp data-start=\"896\" data-end=\"1421\"\u003e\u003cstrong data-start=\"896\" data-end=\"916\"\u003ePrimary Mineral:\u003c\/strong\u003e Manganoan Calcite\u003cbr data-start=\"934\" data-end=\"937\"\u003e\u003cstrong data-start=\"937\" data-end=\"960\"\u003eAssociated Mineral:\u003c\/strong\u003e Rainbow Pyrite (naturally iridescent)\u003cbr data-start=\"998\" data-end=\"1001\"\u003e\u003cstrong data-start=\"1001\" data-end=\"1014\"\u003eLocality:\u003c\/strong\u003e Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department, Peru\u003cbr data-start=\"1096\" data-end=\"1099\"\u003e\u003cstrong data-start=\"1099\" data-end=\"1110\"\u003eWeight:\u003c\/strong\u003e 0.17 lbs (approximately 77 grams)\u003cbr data-start=\"1144\" data-end=\"1147\"\u003e\u003cstrong data-start=\"1147\" data-end=\"1162\"\u003eDimensions:\u003c\/strong\u003e Approximately 2.5 × 2.5 × 2 inches\u003cbr data-start=\"1197\" data-end=\"1200\"\u003e\u003cstrong data-start=\"1200\" data-end=\"1216\"\u003eUV Reaction:\u003c\/strong\u003e Intense pink-red fluorescence under shortwave UV (254 nm); also displays strong fluorescence under many high-quality 365 nm UV lights\u003cbr data-start=\"1350\" data-end=\"1353\"\u003e\u003cstrong data-start=\"1353\" data-end=\"1367\"\u003eCondition:\u003c\/strong\u003e Natural collector specimen\u003cbr data-start=\"1394\" data-end=\"1397\"\u003e\u003cstrong data-start=\"1397\" data-end=\"1421\"\u003eExact specimen shown\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"1423\" data-end=\"1426\"\u003e\n\u003ch2 data-section-id=\"1wf8qzb\" data-start=\"1428\" data-end=\"1454\"\u003eAbout Manganoan Calcite\u003c\/h2\u003e\n\u003cp data-start=\"1456\" data-end=\"1745\"\u003eManganoan calcite is a manganese-rich variety of calcite in which manganese substitutes for calcium within the crystal structure. This substitution is responsible for the spectacular fluorescent response that has made the mineral highly sought after by collectors of fluorescent specimens.\u003c\/p\u003e\n\u003cp data-start=\"1747\" data-end=\"2070\"\u003eThe Huanzala Mine in Peru is internationally recognized for producing outstanding combinations of manganoan calcite with metallic sulfides, particularly pyrite and sphalerite. The contrast between bright white calcite, iridescent pyrite, and vivid fluorescent color creates specimens prized in advanced mineral collections.\u003c\/p\u003e\n\u003chr data-start=\"2072\" data-end=\"2075\"\u003e\n\u003ch2 data-section-id=\"1punl39\" data-start=\"2077\" data-end=\"2095\"\u003eCollector Notes\u003c\/h2\u003e\n\u003cp data-start=\"2097\" data-end=\"2120\"\u003eThis specimen features:\u003c\/p\u003e\n\u003cul data-start=\"2122\" data-end=\"2409\"\u003e\n\u003cli data-section-id=\"moubu1\" data-start=\"2122\" data-end=\"2160\"\u003eExceptional pink-red UV fluorescence\u003c\/li\u003e\n\u003cli data-section-id=\"1gyg0ch\" data-start=\"2161\" data-end=\"2207\"\u003eSharp translucent manganoan calcite crystals\u003c\/li\u003e\n\u003cli data-section-id=\"1l4xoae\" data-start=\"2208\" data-end=\"2255\"\u003eBrilliant naturally iridescent rainbow pyrite\u003c\/li\u003e\n\u003cli data-section-id=\"1igwscg\" data-start=\"2256\" data-end=\"2297\"\u003eExcellent aesthetic crystal arrangement\u003c\/li\u003e\n\u003cli data-section-id=\"124kflw\" data-start=\"2298\" data-end=\"2335\"\u003eClassic Peruvian collector locality\u003c\/li\u003e\n\u003cli data-section-id=\"tjcxol\" data-start=\"2336\" data-end=\"2409\"\u003eOutstanding display specimen both in daylight and under UV illumination\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2411\" data-end=\"2577\"\u003eWhether displayed under normal lighting or UV, this specimen offers two dramatically different appearances, making it a standout conversation piece in any collection.\u003c\/p\u003e\n\u003cp data-start=\"2579\" data-end=\"2629\"\u003eProfessionally packaged and shipped from Colorado.\u003c\/p\u003e\n\u003cp data-start=\"2631\" data-end=\"2677\"\u003eYou will receive the \u003cstrong data-start=\"2652\" data-end=\"2677\"\u003eexact specimen shown.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"2679\" data-end=\"2814\"\u003eEvery order is backed by our commitment to quality and customer satisfaction. Thank you for supporting our family-owned small business.\u003c\/p\u003e","brand":"Serenity Soul Stones","offers":[{"title":"Default Title","offer_id":49530305544442,"sku":null,"price":55.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/2328\/8826\/files\/20260703_183145.jpg?v=1783274133"},{"product_id":"cave-popcorn-formation-with-golden-calcite-druzy-morocco-1-36-lbs","title":"Cave Popcorn Formation with Golden Calcite Druzy – Morocco – 1.36 lbs","description":"\u003cp data-start=\"97\" data-end=\"317\" class=\"PDq2pG_selectionAnchorContainer\"\u003eA striking Cave Popcorn Formation from Morocco, featuring sculptural cave speleothem growth, creamy white to buttery yellow calcite, and sparkling golden druzy crystal pockets developed naturally throughout the specimen.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"319\" data-end=\"863\"\u003eThis impressive display piece showcases multiple generations of cave mineralization, including classic botryoidal \"cave popcorn\" formations, flowing calcite terraces, and naturally recessed cavities lined with fine honey-golden calcite druzy. The specimen displays exceptional three-dimensional architecture, with rounded cave growths rising above softly textured flowstone and translucent calcite. The contrasting white and warm golden coloration creates remarkable visual depth while preserving the specimen's authentic cave-formed character.\u003c\/p\u003e\n\u003cp data-start=\"865\" data-end=\"1061\"\u003eIts unusual sculptural appearance, attractive druzy development, and substantial display size make this an exceptional cabinet specimen for collectors of cave minerals and fine calcite formations.\u003c\/p\u003e\n\u003chr data-start=\"1063\" data-end=\"1066\"\u003e\n\u003ch2 data-section-id=\"1a3ueyz\" data-start=\"1068\" data-end=\"1085\"\u003eSpecifications\u003c\/h2\u003e\n\u003cp data-start=\"1087\" data-end=\"1148\"\u003e\u003cstrong data-start=\"1087\" data-end=\"1099\"\u003eMineral:\u003c\/strong\u003e Cave Popcorn Formation with Golden Calcite Druzy\u003c\/p\u003e\n\u003cp data-start=\"1150\" data-end=\"1171\"\u003e\u003cstrong data-start=\"1150\" data-end=\"1163\"\u003eLocality:\u003c\/strong\u003e Morocco\u003c\/p\u003e\n\u003cp data-start=\"1173\" data-end=\"1193\"\u003e\u003cstrong data-start=\"1173\" data-end=\"1184\"\u003eWeight:\u003c\/strong\u003e 1.36 lbs\u003c\/p\u003e\n\u003cp data-start=\"1195\" data-end=\"1241\"\u003e\u003cstrong data-start=\"1195\" data-end=\"1210\"\u003eDimensions:\u003c\/strong\u003e Approximately 5 × 3 × 4 inches\u003c\/p\u003e\n\u003cp data-start=\"1243\" data-end=\"1327\"\u003e\u003cstrong data-start=\"1243\" data-end=\"1261\"\u003eCrystal Habit:\u003c\/strong\u003e Botryoidal cave popcorn calcite with golden druzy crystal pockets\u003c\/p\u003e\n\u003cp data-start=\"1329\" data-end=\"1370\"\u003e\u003cstrong data-start=\"1329\" data-end=\"1343\"\u003eCondition:\u003c\/strong\u003e Natural collector specimen\u003c\/p\u003e\n\u003cp data-start=\"1372\" data-end=\"1422\"\u003e\u003cstrong data-start=\"1372\" data-end=\"1384\"\u003eDisplay:\u003c\/strong\u003e Excellent self-standing display piece\u003c\/p\u003e\n\u003cp data-start=\"1424\" data-end=\"1448\"\u003e\u003cstrong data-start=\"1424\" data-end=\"1448\"\u003eExact specimen shown\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"1450\" data-end=\"1453\"\u003e\n\u003ch2 data-section-id=\"lvwk8u\" data-start=\"1455\" data-end=\"1487\"\u003eAbout Cave Popcorn Formations\u003c\/h2\u003e\n\u003cp data-start=\"1489\" data-end=\"1883\"\u003eCave popcorn, also known as coralloid speleothem, develops over thousands of years as mineral-rich groundwater slowly deposits microscopic layers of calcite onto cave walls and ceilings. Changes in humidity, airflow, and water chemistry cause these deposits to grow into rounded nodules, bulbous formations, and intricate sculptural surfaces unlike those found in most surface mineral deposits.\u003c\/p\u003e\n\u003cp data-start=\"1885\" data-end=\"2232\"\u003eIn some specimens, later generations of crystal growth line small cavities with sparkling calcite druzy, creating beautiful contrast between smooth cave formations and glittering crystal interiors. These naturally occurring crystal-lined pockets add depth, texture, and collector appeal while preserving the specimen's original geological history.\u003c\/p\u003e\n\u003cp data-start=\"2234\" data-end=\"2389\"\u003eBecause cave environments are highly variable, every popcorn formation develops its own unique architecture, making each specimen completely one of a kind.\u003c\/p\u003e\n\u003chr data-start=\"2391\" data-end=\"2394\"\u003e\n\u003ch2 data-section-id=\"1punl39\" data-start=\"2396\" data-end=\"2414\"\u003eCollector Notes\u003c\/h2\u003e\n\u003cp data-start=\"2416\" data-end=\"2439\"\u003eThis specimen features:\u003c\/p\u003e\n\u003cul data-start=\"2441\" data-end=\"2725\"\u003e\n\u003cli data-section-id=\"untye5\" data-start=\"2441\" data-end=\"2484\"\u003eclassic cave popcorn speleothem formation\u003c\/li\u003e\n\u003cli data-section-id=\"15r8mdd\" data-start=\"2485\" data-end=\"2517\"\u003esparkling golden calcite druzy\u003c\/li\u003e\n\u003cli data-section-id=\"1x8khwq\" data-start=\"2518\" data-end=\"2550\"\u003enatural crystal-lined cavities\u003c\/li\u003e\n\u003cli data-section-id=\"sq21pf\" data-start=\"2551\" data-end=\"2581\"\u003esculptural botryoidal growth\u003c\/li\u003e\n\u003cli data-section-id=\"12jgicq\" data-start=\"2582\" data-end=\"2608\"\u003eflowing calcite terraces\u003c\/li\u003e\n\u003cli data-section-id=\"1x0b4ye\" data-start=\"2609\" data-end=\"2651\"\u003ecreamy white and honey-golden coloration\u003c\/li\u003e\n\u003cli data-section-id=\"1tm6pji\" data-start=\"2652\" data-end=\"2686\"\u003edisplay-quality cabinet specimen\u003c\/li\u003e\n\u003cli data-section-id=\"jyxi4e\" data-start=\"2687\" data-end=\"2725\"\u003eattractive Moroccan mineral locality\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2727\" data-end=\"2903\"\u003ePerfect for collectors of cave minerals, calcite specimens, speleothems, popcorn calcite, botryoidal minerals, geological specimens, and fine display-quality mineral specimens.\u003c\/p\u003e\n\u003cp data-start=\"2905\" data-end=\"2955\"\u003eProfessionally packaged and shipped from Colorado.\u003c\/p\u003e\n\u003cp data-start=\"2957\" data-end=\"2999\"\u003eYou will receive the exact specimen shown.\u003c\/p\u003e\n\u003cp data-start=\"3001\" data-end=\"3136\"\u003eEvery order is backed by our commitment to quality and customer satisfaction. Thank you for supporting our family-owned small business.\u003c\/p\u003e","brand":"Serenity Soul Stones","offers":[{"title":"Default Title","offer_id":49681570889978,"sku":null,"price":57.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/2328\/8826\/files\/20260709_154608.jpg?v=1783636742"},{"product_id":"blue-druzy-chalcedony-with-dogtooth-calcite-jalgaon-region-india-0-54-lbs","title":"Blue Druzy Chalcedony with Dogtooth Calcite – Jalgaon Region, India – 0.54 lbs","description":"\u003cp data-start=\"106\" data-end=\"495\" class=\"PDq2pG_selectionAnchorContainer\"\u003eThis striking collector specimen from the Jalgaon Region of Maharashtra, India features an exceptional landscape of icy blue druzy chalcedony adorned with abundant creamy-white dogtooth calcite crystals. The contrasting textures and colors create an eye-catching display, with sparkling microcrystalline chalcedony serving as the perfect backdrop for sharp, scalenohedral calcite crystals.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"497\" data-end=\"878\"\u003eThe specimen displays multiple generations of mineralization. Soft blue chalcedony blankets the basalt matrix in a shimmering drusy coating, while dozens of well-formed dogtooth calcite crystals rise dramatically from the surface, adding dimension and visual depth. Areas of exposed basalt provide natural contrast and tell the geological story of the Deccan Traps volcanic system.\u003c\/p\u003e\n\u003cp data-start=\"880\" data-end=\"1089\"\u003eStanding approximately 6 inches tall, this is an impressive display piece with excellent cabinet presence. Every viewing angle reveals new crystal clusters, making it a specimen that rewards close examination.\u003c\/p\u003e\n\u003chr data-start=\"1091\" data-end=\"1094\"\u003e\n\u003ch2 data-section-id=\"1a3ueyz\" data-start=\"1096\" data-end=\"1113\"\u003eSpecifications\u003c\/h2\u003e\n\u003cp data-start=\"1115\" data-end=\"1171\"\u003e\u003cstrong data-start=\"1115\" data-end=\"1127\"\u003eMineral:\u003c\/strong\u003e Blue Druzy Chalcedony with Dogtooth Calcite\u003c\/p\u003e\n\u003cp data-start=\"1173\" data-end=\"1221\"\u003e\u003cstrong data-start=\"1173\" data-end=\"1186\"\u003eLocality:\u003c\/strong\u003e Jalgaon Region, Maharashtra, India\u003c\/p\u003e\n\u003cp data-start=\"1223\" data-end=\"1269\"\u003e\u003cstrong data-start=\"1223\" data-end=\"1234\"\u003eWeight:\u003c\/strong\u003e 0.54 lbs (approximately 245 grams)\u003c\/p\u003e\n\u003cp data-start=\"1271\" data-end=\"1319\"\u003e\u003cstrong data-start=\"1271\" data-end=\"1286\"\u003eDimensions:\u003c\/strong\u003e Approximately 3 × 2.5 × 6 inches\u003c\/p\u003e\n\u003cp data-start=\"1321\" data-end=\"1339\"\u003e\u003cstrong data-start=\"1321\" data-end=\"1339\"\u003eCrystal Habit:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1340\" data-end=\"1428\"\u003e\n\u003cli data-section-id=\"1xfslbr\" data-start=\"1340\" data-end=\"1376\"\u003eFine blue druzy chalcedony coating\u003c\/li\u003e\n\u003cli data-section-id=\"1echvy6\" data-start=\"1377\" data-end=\"1428\"\u003eSharp scalenohedral (\"dogtooth\") calcite crystals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1430\" data-end=\"1460\"\u003e\u003cstrong data-start=\"1430\" data-end=\"1441\"\u003eMatrix:\u003c\/strong\u003e Deccan Trap Basalt\u003c\/p\u003e\n\u003cp data-start=\"1462\" data-end=\"1513\"\u003e\u003cstrong data-start=\"1462\" data-end=\"1474\"\u003eDisplay:\u003c\/strong\u003e Self-standing with support recommended\u003c\/p\u003e\n\u003cp data-start=\"1515\" data-end=\"1536\"\u003e\u003cstrong data-start=\"1515\" data-end=\"1536\"\u003eExact piece shown\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"1538\" data-end=\"1541\"\u003e\n\u003ch2 data-section-id=\"xdkmw8\" data-start=\"1543\" data-end=\"1551\"\u003eAbout\u003c\/h2\u003e\n\u003cp data-start=\"1553\" data-end=\"1910\"\u003eThe Deccan Traps of western India are among the world's largest volcanic provinces and have produced some of the finest zeolite and associated mineral specimens known. Following volcanic eruptions millions of years ago, mineral-rich fluids circulated through cavities within the basalt, depositing successive layers of silica, calcite, and zeolite minerals.\u003c\/p\u003e\n\u003cp data-start=\"1912\" data-end=\"2266\"\u003eThis specimen showcases that process beautifully. A delicate coating of blue chalcedony formed first, producing a sparkling drusy surface. Later mineralizing events introduced creamy dogtooth calcite crystals that grew outward from the chalcedony, creating an elegant contrast between fine microcrystals and larger, sharply terminated calcite formations.\u003c\/p\u003e\n\u003cp data-start=\"2268\" data-end=\"2433\"\u003eThe combination of soft blue chalcedony and abundant calcite crystals is highly sought after by collectors for its aesthetic balance and exceptional display quality.\u003c\/p\u003e\n\u003chr data-start=\"2435\" data-end=\"2438\"\u003e\n\u003ch2 data-section-id=\"1punl39\" data-start=\"2440\" data-end=\"2458\"\u003eCollector Notes\u003c\/h2\u003e\n\u003cp data-start=\"2460\" data-end=\"2496\"\u003eHighlights of this specimen include:\u003c\/p\u003e\n\u003cul data-start=\"2498\" data-end=\"2930\"\u003e\n\u003cli data-section-id=\"16bg49m\" data-start=\"2498\" data-end=\"2531\"\u003eExceptional 6-inch display size\u003c\/li\u003e\n\u003cli data-section-id=\"hz3ctw\" data-start=\"2532\" data-end=\"2579\"\u003eAttractive pale blue druzy chalcedony coating\u003c\/li\u003e\n\u003cli data-section-id=\"10g1sbj\" data-start=\"2580\" data-end=\"2631\"\u003eNumerous well-developed dogtooth calcite crystals\u003c\/li\u003e\n\u003cli data-section-id=\"nt93uy\" data-start=\"2632\" data-end=\"2694\"\u003eBeautiful contrast between white calcite and blue chalcedony\u003c\/li\u003e\n\u003cli data-section-id=\"zojolq\" data-start=\"2695\" data-end=\"2740\"\u003eNatural basalt matrix from the Deccan Traps\u003c\/li\u003e\n\u003cli data-section-id=\"138s9b9\" data-start=\"2741\" data-end=\"2781\"\u003eMultiple generations of mineral growth\u003c\/li\u003e\n\u003cli data-section-id=\"tjcyba\" data-start=\"2782\" data-end=\"2852\"\u003eSparkling microcrystalline texture across nearly the entire specimen\u003c\/li\u003e\n\u003cli data-section-id=\"1tdyz8i\" data-start=\"2853\" data-end=\"2907\"\u003eExcellent three-dimensional display from every angle\u003c\/li\u003e\n\u003cli data-section-id=\"1wezdgk\" data-start=\"2908\" data-end=\"2930\"\u003eExact specimen shown\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2932\" data-end=\"3071\"\u003eA wonderful addition for collectors of Indian minerals, Deccan Trap specimens, chalcedony, calcite, zeolites, and aesthetic display pieces.\u003c\/p\u003e\n\u003cp data-start=\"3073\" data-end=\"3123\"\u003eProfessionally packaged and shipped from Colorado.\u003c\/p\u003e\n\u003cp data-start=\"3125\" data-end=\"3167\"\u003eYou will receive the exact specimen shown.\u003c\/p\u003e\n\u003cp data-start=\"3169\" data-end=\"3304\"\u003eEvery order is backed by our commitment to quality and customer satisfaction. Thank you for supporting our family-owned small business.\u003c\/p\u003e","brand":"Serenity Soul Stones","offers":[{"title":"Default Title","offer_id":49685385117946,"sku":null,"price":260.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/2328\/8826\/files\/20260709_161832.jpg?v=1783713525"},{"product_id":"rainbow-pyrite-on-mangano-calcite-peru-27-grams","title":"Rainbow Pyrite on Mangano Calcite – Peru – 27 grams","description":"\u003cp data-start=\"83\" data-end=\"461\" class=\"PDq2pG_selectionAnchorContainer\"\u003eThis exceptional collector specimen from Peru features a stunning association of \u003cstrong data-start=\"164\" data-end=\"193\"\u003eiridescent Rainbow Pyrite\u003c\/strong\u003e elegantly perched atop gemmy \u003cstrong data-start=\"223\" data-end=\"242\"\u003eMangano Calcite\u003c\/strong\u003e crystals. Though compact in size, the specimen displays remarkable aesthetics with brilliant metallic luster, sharp crystal definition, and an impressive fluorescent response that transforms it under ultraviolet light.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"463\" data-end=\"778\"\u003eBrilliant golden pyrite crystals exhibit vivid flashes of green, bronze, violet, and rainbow iridescence as the light moves across their mirror-like faces. The metallic crystals beautifully contrast against two well-formed translucent Mangano Calcite crystals that display excellent clarity and a soft natural glow.\u003c\/p\u003e\n\u003cp data-start=\"780\" data-end=\"1222\"\u003eUnder \u003cstrong data-start=\"786\" data-end=\"804\"\u003e365nm UV light\u003c\/strong\u003e, the Mangano Calcite ignites with a spectacular, intense neon pink-orange fluorescence, creating a dramatic visual effect while the pyrite maintains its brilliant metallic shimmer. The combination of brilliant daylight aesthetics and outstanding UV performance makes this a highly desirable specimen for collectors who appreciate minerals that reveal a completely different personality under ultraviolet illumination.\u003c\/p\u003e\n\u003cp data-start=\"1224\" data-end=\"1384\"\u003eThe balance of crystallization, contrasting textures, and exceptional fluorescence makes this an eye-catching cabinet specimen that punches well above its size.\u003c\/p\u003e\n\u003chr data-start=\"1386\" data-end=\"1389\"\u003e\n\u003ch2 data-section-id=\"1a3ueyz\" data-start=\"1391\" data-end=\"1408\"\u003eSpecifications\u003c\/h2\u003e\n\u003cp data-start=\"1410\" data-end=\"1456\"\u003e\u003cstrong data-start=\"1410\" data-end=\"1422\"\u003eMineral:\u003c\/strong\u003e Rainbow Pyrite on Mangano Calcite\u003c\/p\u003e\n\u003cp data-start=\"1458\" data-end=\"1476\"\u003e\u003cstrong data-start=\"1458\" data-end=\"1471\"\u003eLocality:\u003c\/strong\u003e Peru\u003c\/p\u003e\n\u003cp data-start=\"1478\" data-end=\"1498\"\u003e\u003cstrong data-start=\"1478\" data-end=\"1489\"\u003eWeight:\u003c\/strong\u003e 27 grams\u003c\/p\u003e\n\u003cp data-start=\"1500\" data-end=\"1551\"\u003e\u003cstrong data-start=\"1500\" data-end=\"1515\"\u003eDimensions:\u003c\/strong\u003e Approximately 1.5 × 0.75 × 2 inches\u003c\/p\u003e\n\u003cp data-start=\"1553\" data-end=\"1628\"\u003e\u003cstrong data-start=\"1553\" data-end=\"1569\"\u003eUV Reaction:\u003c\/strong\u003e Exceptional bright pink-orange fluorescence under 365nm UV\u003c\/p\u003e\n\u003cp data-start=\"1630\" data-end=\"1669\"\u003e\u003cstrong data-start=\"1630\" data-end=\"1642\"\u003eDisplay:\u003c\/strong\u003e Natural collector specimen\u003c\/p\u003e\n\u003chr data-start=\"1671\" data-end=\"1674\"\u003e\n\u003ch2 data-section-id=\"xdkmw8\" data-start=\"1676\" data-end=\"1684\"\u003eAbout\u003c\/h2\u003e\n\u003cp data-start=\"1686\" data-end=\"2020\"\u003ePeru produces some of the world's most sought-after pyrite specimens, renowned for their brilliant metallic luster and exceptional crystal quality. When paired with Mangano Calcite, these specimens become especially desirable because of the dramatic contrast between reflective metallic pyrite and softly translucent calcite crystals.\u003c\/p\u003e\n\u003cp data-start=\"2022\" data-end=\"2212\"\u003eThe pyrite's rainbow colors result from an ultra-thin natural oxidation layer that refracts light, producing vibrant iridescent flashes without diminishing the crystal's metallic brilliance.\u003c\/p\u003e\n\u003cp data-start=\"2214\" data-end=\"2520\"\u003eMangano Calcite is prized among collectors for its manganese-rich chemistry, which creates one of the strongest fluorescent reactions found in calcite. Under longwave ultraviolet light, the crystals glow with an intense neon pink-orange color, making UV-active specimens like this particularly collectible.\u003c\/p\u003e\n\u003chr data-start=\"2522\" data-end=\"2525\"\u003e\n\u003ch2 data-section-id=\"1punl39\" data-start=\"2527\" data-end=\"2545\"\u003eCollector Notes\u003c\/h2\u003e\n\u003cul data-start=\"2547\" data-end=\"2945\"\u003e\n\u003cli data-section-id=\"jr06zn\" data-start=\"2547\" data-end=\"2593\"\u003eBrilliant iridescent Rainbow Pyrite crystals\u003c\/li\u003e\n\u003cli data-section-id=\"1hsubvi\" data-start=\"2594\" data-end=\"2644\"\u003eWell-formed translucent Mangano Calcite crystals\u003c\/li\u003e\n\u003cli data-section-id=\"95uwuz\" data-start=\"2645\" data-end=\"2703\"\u003eExceptional neon pink-orange fluorescence under 365nm UV\u003c\/li\u003e\n\u003cli data-section-id=\"nwvsnh\" data-start=\"2704\" data-end=\"2772\"\u003eExcellent contrast between metallic and transparent crystal growth\u003c\/li\u003e\n\u003cli data-section-id=\"lk8k8b\" data-start=\"2773\" data-end=\"2818\"\u003eHighly aesthetic miniature cabinet specimen\u003c\/li\u003e\n\u003cli data-section-id=\"ut8p0n\" data-start=\"2819\" data-end=\"2857\"\u003eClassic Peruvian mineral association\u003c\/li\u003e\n\u003cli data-section-id=\"1ykrb93\" data-start=\"2858\" data-end=\"2919\"\u003eDisplays beautifully in both daylight and ultraviolet light\u003c\/li\u003e\n\u003cli data-section-id=\"1bmwm75\" data-start=\"2920\" data-end=\"2945\"\u003eExact specimen pictured\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2947\" data-end=\"2950\"\u003e\n\u003cp data-start=\"2952\" data-end=\"3006\"\u003e\u003cstrong data-start=\"2952\" data-end=\"3006\"\u003eProfessionally packaged and shipped from Colorado.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"3008\" data-end=\"3054\"\u003e\u003cstrong data-start=\"3008\" data-end=\"3054\"\u003eYou will receive the exact specimen shown.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"3056\" data-end=\"3195\"\u003e\u003cstrong data-start=\"3056\" data-end=\"3195\"\u003eEvery order is backed by our commitment to quality and customer satisfaction. Thank you for supporting our family-owned small business.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Serenity Soul Stones","offers":[{"title":"Default Title","offer_id":49703022264570,"sku":null,"price":37.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/2328\/8826\/files\/20260715_103012.jpg?v=1784135803"},{"product_id":"optical-calcite-iceland-spar-maharashtra-india-1-49-lbs","title":"Optical Calcite (Iceland Spar) – Maharashtra, India – 1.49 lbs","description":"\u003cp data-start=\"90\" data-end=\"303\" class=\"PDq2pG_selectionAnchorContainer\"\u003eA striking \u003cstrong data-start=\"101\" data-end=\"135\"\u003eOptical Calcite (Iceland Spar)\u003c\/strong\u003e specimen from \u003cstrong data-start=\"150\" data-end=\"172\"\u003eMaharashtra, India\u003c\/strong\u003e, featuring exceptionally transparent calcite crystals accompanied by attractive cream-colored stilbite on natural volcanic matrix.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"305\" data-end=\"682\"\u003eThis specimen displays the remarkable clarity for which optical calcite is famous. The translucent calcite crystals exhibit glassy faces and excellent internal transparency, while the accompanying stilbite adds soft pearly contrast and architectural balance. Together, the minerals create a beautiful association that showcases two classic species from the famous Deccan Traps.\u003c\/p\u003e\n\u003cp data-start=\"684\" data-end=\"1028\"\u003eOptical calcite is renowned for its extraordinary optical properties, particularly its ability to produce \u003cstrong data-start=\"790\" data-end=\"827\"\u003edouble refraction (birefringence)\u003c\/strong\u003e. When viewed through clear crystals, objects beneath appear doubled—a phenomenon that has fascinated scientists and collectors for centuries and helped advance the study of crystallography and optics.\u003c\/p\u003e\n\u003cp data-start=\"1030\" data-end=\"1359\"\u003eAt approximately \u003cstrong data-start=\"1047\" data-end=\"1062\"\u003e1.49 pounds\u003c\/strong\u003e and measuring roughly \u003cstrong data-start=\"1085\" data-end=\"1105\"\u003e4 × 3 × 3 inches\u003c\/strong\u003e, this specimen offers excellent cabinet presence while remaining an ideal display size. Its combination of transparent calcite, elegant stilbite associations, and classic Maharashtra provenance makes it an outstanding addition to any mineral collection.\u003c\/p\u003e\n\u003chr data-start=\"1361\" data-end=\"1364\"\u003e\n\u003ch2 data-section-id=\"1a3ueyz\" data-start=\"1366\" data-end=\"1383\"\u003eSpecifications\u003c\/h2\u003e\n\u003cp data-start=\"1385\" data-end=\"1442\"\u003e\u003cstrong data-start=\"1385\" data-end=\"1397\"\u003eMineral:\u003c\/strong\u003e Optical Calcite (Iceland Spar) with Stilbite\u003c\/p\u003e\n\u003cp data-start=\"1444\" data-end=\"1476\"\u003e\u003cstrong data-start=\"1444\" data-end=\"1457\"\u003eLocality:\u003c\/strong\u003e Maharashtra, India\u003c\/p\u003e\n\u003cp data-start=\"1478\" data-end=\"1524\"\u003e\u003cstrong data-start=\"1478\" data-end=\"1489\"\u003eWeight:\u003c\/strong\u003e 1.49 lbs (approximately 676 grams)\u003c\/p\u003e\n\u003cp data-start=\"1526\" data-end=\"1572\"\u003e\u003cstrong data-start=\"1526\" data-end=\"1541\"\u003eDimensions:\u003c\/strong\u003e Approximately 4 × 3 × 3 inches\u003c\/p\u003e\n\u003cp data-start=\"1574\" data-end=\"1650\"\u003e\u003cstrong data-start=\"1574\" data-end=\"1592\"\u003eCrystal Habit:\u003c\/strong\u003e Transparent rhombohedral calcite with fan-shaped stilbite\u003c\/p\u003e\n\u003cp data-start=\"1652\" data-end=\"1708\"\u003e\u003cstrong data-start=\"1652\" data-end=\"1662\"\u003eColor:\u003c\/strong\u003e Colorless to white with creamy white stilbite\u003c\/p\u003e\n\u003cp data-start=\"1710\" data-end=\"1740\"\u003e\u003cstrong data-start=\"1710\" data-end=\"1721\"\u003eLuster:\u003c\/strong\u003e Vitreous to pearly\u003c\/p\u003e\n\u003cp data-start=\"1742\" data-end=\"1784\"\u003e\u003cstrong data-start=\"1742\" data-end=\"1753\"\u003eMatrix:\u003c\/strong\u003e Natural volcanic basalt matrix\u003c\/p\u003e\n\u003cp data-start=\"1786\" data-end=\"1827\"\u003e\u003cstrong data-start=\"1786\" data-end=\"1800\"\u003eCondition:\u003c\/strong\u003e Natural collector specimen\u003c\/p\u003e\n\u003cp data-start=\"1829\" data-end=\"1892\"\u003e\u003cstrong data-start=\"1829\" data-end=\"1841\"\u003eDisplay:\u003c\/strong\u003e Cabinet specimen with transparent optical crystals\u003c\/p\u003e\n\u003cp data-start=\"1894\" data-end=\"1918\"\u003e\u003cstrong data-start=\"1894\" data-end=\"1918\"\u003eExact specimen shown\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"1920\" data-end=\"1923\"\u003e\n\u003ch2 data-section-id=\"1sqo11k\" data-start=\"1925\" data-end=\"1964\"\u003eAbout Optical Calcite (Iceland Spar)\u003c\/h2\u003e\n\u003cp data-start=\"1966\" data-end=\"2304\"\u003eOptical calcite, historically known as \u003cstrong data-start=\"2005\" data-end=\"2021\"\u003eIceland Spar\u003c\/strong\u003e, is one of the most famous varieties of calcite because of its exceptional transparency and remarkable optical behavior. Large transparent crystals display strong \u003cstrong data-start=\"2185\" data-end=\"2206\"\u003edouble refraction\u003c\/strong\u003e, causing objects viewed through the crystal to appear doubled due to the mineral's birefringence.\u003c\/p\u003e\n\u003cp data-start=\"2306\" data-end=\"2694\"\u003eAlthough the name originated from famous deposits in Iceland, transparent optical calcite is also found in select localities worldwide, including the zeolite-bearing basalt cavities of Maharashtra, India. Here, hydrothermal mineral-rich fluids deposited calcite alongside zeolite minerals such as stilbite, apophyllite, and heulandite within cavities formed by ancient volcanic eruptions.\u003c\/p\u003e\n\u003cp data-start=\"2696\" data-end=\"2881\"\u003eSpecimens combining transparent optical calcite with attractive zeolite associations are especially desirable because they unite scientific significance with exceptional natural beauty.\u003c\/p\u003e\n\u003chr data-start=\"2883\" data-end=\"2886\"\u003e\n\u003ch2 data-section-id=\"1punl39\" data-start=\"2888\" data-end=\"2906\"\u003eCollector Notes\u003c\/h2\u003e\n\u003cp data-start=\"2908\" data-end=\"2935\"\u003e\u003cstrong data-start=\"2908\" data-end=\"2935\"\u003eThis specimen features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2937\" data-end=\"3342\"\u003e\n\u003cli data-section-id=\"acb8hy\" data-start=\"2937\" data-end=\"2975\"\u003etransparent optical calcite crystals\u003c\/li\u003e\n\u003cli data-section-id=\"1sxrxww\" data-start=\"2976\" data-end=\"3006\"\u003eclassic Iceland spar variety\u003c\/li\u003e\n\u003cli data-section-id=\"1wsn8zm\" data-start=\"3007\" data-end=\"3044\"\u003eassociated pearly stilbite crystals\u003c\/li\u003e\n\u003cli data-section-id=\"1qcwilx\" data-start=\"3045\" data-end=\"3077\"\u003eexcellent natural transparency\u003c\/li\u003e\n\u003cli data-section-id=\"1pao88b\" data-start=\"3078\" data-end=\"3116\"\u003eclassic Maharashtra zeolite locality\u003c\/li\u003e\n\u003cli data-section-id=\"1quzh0a\" data-start=\"3117\" data-end=\"3155\"\u003eattractive multi-mineral association\u003c\/li\u003e\n\u003cli data-section-id=\"1l7j9np\" data-start=\"3156\" data-end=\"3188\"\u003estrong vitreous crystal luster\u003c\/li\u003e\n\u003cli data-section-id=\"4o51qw\" data-start=\"3189\" data-end=\"3226\"\u003esubstantial 1.49-pound cabinet size\u003c\/li\u003e\n\u003cli data-section-id=\"15gudh4\" data-start=\"3227\" data-end=\"3259\"\u003enatural volcanic basalt matrix\u003c\/li\u003e\n\u003cli data-section-id=\"zafhs8\" data-start=\"3260\" data-end=\"3297\"\u003eexcellent three-dimensional display\u003c\/li\u003e\n\u003cli data-section-id=\"10ov1b6\" data-start=\"3298\" data-end=\"3342\"\u003escientifically significant optical mineral\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3344\" data-end=\"3591\"\u003ePerfect for collectors of optical calcite, Iceland spar, calcite specimens, Indian zeolites, stilbite associations, Maharashtra minerals, transparent crystals, cabinet specimens, educational mineral displays, and museum-quality collector minerals.\u003c\/p\u003e\n\u003chr data-start=\"3593\" data-end=\"3596\"\u003e\n\u003cp data-start=\"3598\" data-end=\"3648\"\u003eProfessionally packaged and shipped from Colorado.\u003c\/p\u003e\n\u003cp data-start=\"3650\" data-end=\"3692\"\u003eYou will receive the exact specimen shown.\u003c\/p\u003e\n\u003cp data-start=\"3694\" data-end=\"3829\"\u003eEvery order is backed by our commitment to quality and customer satisfaction. Thank you for supporting our family-owned small business.\u003c\/p\u003e","brand":"Serenity Soul Stones","offers":[{"title":"Default Title","offer_id":49716404125946,"sku":null,"price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/2328\/8826\/files\/20260717_115546.jpg?v=1784311341"},{"product_id":"optical-calcite-iceland-spar-with-phantom-maharashtra-india-1-49-lbs","title":"Optical Calcite (Iceland Spar) with Phantom – Maharashtra, India – 1.49 lbs","description":"\u003cp data-start=\"85\" data-end=\"490\" class=\"PDq2pG_selectionAnchorContainer\"\u003eA substantial Optical Calcite specimen from Maharashtra, India, displaying impressive transparency, prominent rhombohedral cleavage, and colorful internal rainbow reflections. Often called “Iceland Spar” in the mineral trade, transparent calcite is celebrated for its strong double-refraction effect, which can cause objects or printed lines viewed through clear portions of the crystal to appear doubled.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"492\" data-end=\"898\"\u003eThis specimen ranges from water-clear to softly translucent, with broad reflective surfaces and complex internal cleavage planes. Natural fractures, crystalline veils, and layered growth features interact with light to produce flashes of spectral color throughout the interior. When illuminated or viewed from different angles, these internal structures reveal shifting rainbows and luminous optical depth.\u003c\/p\u003e\n\u003cp data-start=\"900\" data-end=\"1227\"\u003eThe blocky formation preserves calcite’s characteristic rhombohedral geometry, while stepped edges and overlapping cleavage surfaces create an architectural appearance. A softly clouded zone near the base contrasts beautifully with the clearer upper portions, emphasizing the specimen’s internal structure and substantial mass.\u003c\/p\u003e\n\u003cp data-start=\"1229\" data-end=\"1611\"\u003eMeasuring approximately 4 × 3 × 3.5 inches and weighing 1.49 pounds, this is an impressive cabinet-sized example with excellent display presence. Its combination of clarity, optical behavior, rainbow-producing internal features, and educational value makes it appealing to mineral collectors, science enthusiasts, and anyone fascinated by the interaction between crystals and light.\u003c\/p\u003e\n\u003cp data-start=\"1613\" data-end=\"1627\"\u003eSpecifications\u003c\/p\u003e\n\u003cp data-start=\"1629\" data-end=\"1645\"\u003eMineral: Calcite\u003c\/p\u003e\n\u003cp data-start=\"1647\" data-end=\"1697\"\u003eVariety\/Trade Name: Optical Calcite \/ Iceland Spar\u003c\/p\u003e\n\u003cp data-start=\"1699\" data-end=\"1727\"\u003eLocality: Maharashtra, India\u003c\/p\u003e\n\u003cp data-start=\"1729\" data-end=\"1771\"\u003eWeight: 1.49 lbs (approximately 676 grams)\u003c\/p\u003e\n\u003cp data-start=\"1773\" data-end=\"1817\"\u003eDimensions: Approximately 4 × 3 × 3.5 inches\u003c\/p\u003e\n\u003cp data-start=\"1819\" data-end=\"1884\"\u003eColor: Colorless to milky white with internal rainbow reflections\u003c\/p\u003e\n\u003cp data-start=\"1886\" data-end=\"1951\"\u003eCrystal Form: Blocky calcite with prominent rhombohedral cleavage\u003c\/p\u003e\n\u003cp data-start=\"1953\" data-end=\"2003\"\u003eLuster: Vitreous to pearly along cleavage surfaces\u003c\/p\u003e\n\u003cp data-start=\"2005\" data-end=\"2045\"\u003eTransparency: Transparent to translucent\u003c\/p\u003e\n\u003cp data-start=\"2047\" data-end=\"2117\"\u003eOptical Property: Strong double refraction in sufficiently clear areas\u003c\/p\u003e\n\u003cp data-start=\"2119\" data-end=\"2143\"\u003eCrystal System: Trigonal\u003c\/p\u003e\n\u003cp data-start=\"2145\" data-end=\"2168\"\u003eChemical Formula: CaCO₃\u003c\/p\u003e\n\u003cp data-start=\"2170\" data-end=\"2291\"\u003eCondition: Natural mineral specimen with internal fractures, cleavage features, surface contacts, and edge irregularities\u003c\/p\u003e\n\u003cp data-start=\"2293\" data-end=\"2348\"\u003eDisplay: Substantial collector and educational specimen\u003c\/p\u003e\n\u003cp data-start=\"2350\" data-end=\"2370\"\u003eExact specimen shown\u003c\/p\u003e\n\u003cp data-start=\"2372\" data-end=\"2393\"\u003eAbout Optical Calcite\u003c\/p\u003e\n\u003cp data-start=\"2395\" data-end=\"2660\"\u003eCalcite is a calcium carbonate mineral with the chemical formula CaCO₃. It crystallizes in the trigonal system and occurs in an extraordinary range of forms, including rhombohedrons, scalenohedrons, massive deposits, stalactites, and transparent cleavage fragments.\u003c\/p\u003e\n\u003cp data-start=\"2662\" data-end=\"2963\"\u003eHighly transparent calcite is widely known as optical calcite or Iceland spar. The historic name “Iceland spar” originated with exceptionally clear material from Iceland but is now commonly used in the mineral trade for transparent calcite exhibiting strong optical properties, regardless of locality.\u003c\/p\u003e\n\u003cp data-start=\"2965\" data-end=\"3308\"\u003eCalcite is strongly birefringent, meaning that light entering the mineral is divided into two rays traveling at different speeds and directions. This phenomenon produces the mineral’s famous double-refraction effect. When a sufficiently clear piece is placed over a line or small object, two separate images may be visible through the crystal.\u003c\/p\u003e\n\u003cp data-start=\"3310\" data-end=\"3654\"\u003eMaharashtra lies within the Deccan Traps, an immense volcanic province renowned for producing calcite, apophyllite, stilbite, heulandite, chalcedony, and many other collectible cavity minerals. Mineral-rich fluids circulated through openings in the ancient basalt, depositing crystals during successive stages of low-temperature mineralization.\u003c\/p\u003e\n\u003cp data-start=\"3656\" data-end=\"3671\"\u003eCollector Notes\u003c\/p\u003e\n\u003cp data-start=\"3673\" data-end=\"3696\"\u003eThis specimen features:\u003c\/p\u003e\n\u003cp data-start=\"3698\" data-end=\"4336\"\u003esubstantial optical calcite from Maharashtra, India\u003cbr data-start=\"3749\" data-end=\"3752\"\u003etransparent to softly translucent crystalline areas\u003cbr data-start=\"3803\" data-end=\"3806\"\u003eclassic double-refraction potential through clearer sections\u003cbr data-start=\"3866\" data-end=\"3869\"\u003eprominent rhombohedral cleavage geometry\u003cbr data-start=\"3909\" data-end=\"3912\"\u003ebroad reflective calcite surfaces\u003cbr data-start=\"3945\" data-end=\"3948\"\u003enumerous internal cleavage planes and crystalline veils\u003cbr data-start=\"4003\" data-end=\"4006\"\u003evivid natural rainbow reflections\u003cbr data-start=\"4039\" data-end=\"4042\"\u003ecomplex optical depth under direct lighting\u003cbr data-start=\"4085\" data-end=\"4088\"\u003econtrasting clear and softly clouded zones\u003cbr data-start=\"4130\" data-end=\"4133\"\u003eimpressive cabinet-sized dimensions\u003cbr data-start=\"4168\" data-end=\"4171\"\u003eexcellent educational and scientific interest\u003cbr data-start=\"4216\" data-end=\"4219\"\u003ematerial from India’s renowned Deccan Traps region\u003cbr data-start=\"4269\" data-end=\"4272\"\u003eone-of-a-kind natural mineral specimen\u003cbr data-start=\"4310\" data-end=\"4313\"\u003eexact specimen pictured\u003c\/p\u003e\n\u003cp data-start=\"4338\" data-end=\"4589\"\u003ePerfect for collectors of optical calcite, Iceland spar, Indian minerals, Maharashtra specimens, transparent crystals, rainbow minerals, birefringent minerals, educational geology specimens, optical mineral displays, and substantial cabinet specimens.\u003c\/p\u003e\n\u003cp data-start=\"4591\" data-end=\"4641\"\u003eProfessionally packaged and shipped from Colorado.\u003c\/p\u003e\n\u003cp data-start=\"4643\" data-end=\"4685\"\u003eYou will receive the exact specimen shown.\u003c\/p\u003e\n\u003cp data-start=\"4687\" data-end=\"4822\"\u003eEvery order is backed by our commitment to quality and customer satisfaction. Thank you for supporting our family-owned small business.\u003c\/p\u003e","brand":"Serenity Soul Stones","offers":[{"title":"Default Title","offer_id":49730193916154,"sku":null,"price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/2328\/8826\/files\/OpticalCalcite_IcelandSpar_Maharashtra_India_1.49lbs_3.jpg?v=1784670868"},{"product_id":"rainbow-optical-calcite-maharashtra-india-0-32-lbs","title":"Rainbow Optical Calcite – Maharashtra, India – 0.32 lbs","description":"\u003cp data-start=\"83\" data-end=\"418\" class=\"PDq2pG_selectionAnchorContainer\"\u003eAn extra-quality Rainbow Optical Calcite specimen from Maharashtra, India, featuring excellent transparency, strong internal optical effects, and vivid spectral flashes. Naturally self-standing, the specimen presents an architectural, crystal-like profile that displays beautifully without requiring the stand shown in the photographs.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"420\" data-end=\"887\"\u003eThe calcite ranges from nearly water-clear to softly translucent, with broad viewing windows revealing layered cleavage planes, internal veils, and reflective features throughout the specimen. When moved beneath direct light, selected internal fractures separate the light into flashes of blue, violet, green, yellow, orange, and red. These natural rainbow displays appear and disappear as the viewing angle changes, making the specimen especially engaging in person.\u003c\/p\u003e\n\u003cp data-start=\"889\" data-end=\"1296\"\u003eIts wedge-shaped form is defined by calcite’s characteristic rhombohedral cleavage. Large flat surfaces provide clear views into the interior, where overlapping planes and subtle internal structures create shifting reflections and optical depth. Calcite is also naturally birefringent, meaning that clear portions can split transmitted light and produce double images when viewed over text or fine patterns.\u003c\/p\u003e\n\u003cp data-start=\"1298\" data-end=\"1627\"\u003eMeasuring approximately 2.25 × 1 × 2.25 inches and weighing 0.32 pounds, this compact specimen combines excellent clarity, strong rainbow activity, educational optical properties, and convenient freestanding display. Its high transparency and colorful internal reflections distinguish it from more ordinary cloudy calcite pieces.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1a3ueyz\" data-start=\"1629\" data-end=\"1646\"\u003eSpecifications\u003c\/h2\u003e\n\u003cp data-start=\"1648\" data-end=\"1664\"\u003eMineral: Calcite\u003c\/p\u003e\n\u003cp data-start=\"1666\" data-end=\"1732\"\u003eVariety\/Trade Description: Rainbow Optical Calcite — Extra Quality\u003c\/p\u003e\n\u003cp data-start=\"1734\" data-end=\"1762\"\u003eLocality: Maharashtra, India\u003c\/p\u003e\n\u003cp data-start=\"1764\" data-end=\"1806\"\u003eWeight: 0.32 lbs (approximately 145 grams)\u003c\/p\u003e\n\u003cp data-start=\"1808\" data-end=\"1856\"\u003eDimensions: Approximately 2.25 × 1 × 2.25 inches\u003c\/p\u003e\n\u003cp data-start=\"1858\" data-end=\"1934\"\u003eColor: Colorless to icy white with multicolored internal rainbow reflections\u003c\/p\u003e\n\u003cp data-start=\"1936\" data-end=\"2010\"\u003eForm: Natural cleavage specimen with a wedge-shaped, architectural profile\u003c\/p\u003e\n\u003cp data-start=\"2012\" data-end=\"2042\"\u003eLuster: Vitreous to glass-like\u003c\/p\u003e\n\u003cp data-start=\"2044\" data-end=\"2084\"\u003eTransparency: Transparent to translucent\u003c\/p\u003e\n\u003cp data-start=\"2086\" data-end=\"2178\"\u003eOptical Property: Strong birefringence or double refraction through sufficiently clear areas\u003c\/p\u003e\n\u003cp data-start=\"2180\" data-end=\"2296\"\u003eRainbow Effect: Natural spectral flashes produced where light interacts with internal cleavage and fracture surfaces\u003c\/p\u003e\n\u003cp data-start=\"2298\" data-end=\"2322\"\u003eCrystal System: Trigonal\u003c\/p\u003e\n\u003cp data-start=\"2324\" data-end=\"2347\"\u003eChemical Formula: CaCO₃\u003c\/p\u003e\n\u003cp data-start=\"2349\" data-end=\"2379\"\u003eMohs Hardness: Approximately 3\u003c\/p\u003e\n\u003cp data-start=\"2381\" data-end=\"2477\"\u003eDisplay: Naturally self-standing; display stand shown is not included unless otherwise specified\u003c\/p\u003e\n\u003cp data-start=\"2479\" data-end=\"2616\"\u003eCondition: Natural calcite specimen with inherent cleavage lines, internal fractures, contacts, surface textures, and edge irregularities\u003c\/p\u003e\n\u003cp data-start=\"2618\" data-end=\"2638\"\u003eExact specimen shown\u003c\/p\u003e\n\u003ch2 data-section-id=\"g70bqp\" data-start=\"2640\" data-end=\"2664\"\u003eAbout Optical Calcite\u003c\/h2\u003e\n\u003cp data-start=\"2666\" data-end=\"2929\"\u003eCalcite is a calcium carbonate mineral with the chemical formula CaCO₃. It crystallizes in the trigonal system and is well known for its perfect rhombohedral cleavage, which allows it to separate along three consistent directions that do not meet at right angles.\u003c\/p\u003e\n\u003cp data-start=\"2931\" data-end=\"3225\"\u003eExceptionally transparent calcite is often described as optical calcite because of its pronounced birefringence. Light entering the mineral is divided into two rays traveling at different speeds. When a clear piece is placed over text or a fine line, this effect can produce two visible images.\u003c\/p\u003e\n\u003cp data-start=\"3227\" data-end=\"3509\"\u003eThe rainbow colors are a separate optical phenomenon. Thin internal fractures and cleavage separations act as natural prisms or interference surfaces, dividing white light into spectral colors. The intensity and position of these rainbows change with the lighting and viewing angle.\u003c\/p\u003e\n\u003cp data-start=\"3511\" data-end=\"3729\"\u003eCalcite is significantly softer than quartz and possesses perfect cleavage. It should be handled carefully, kept away from acids, and cleaned without soaking. A soft dry brush or gentle microfiber cloth is recommended.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1punl39\" data-start=\"3731\" data-end=\"3749\"\u003eCollector Notes\u003c\/h2\u003e\n\u003cp data-start=\"3751\" data-end=\"3774\"\u003eThis specimen features:\u003c\/p\u003e\n\u003cul data-start=\"3776\" data-end=\"4358\"\u003e\n\u003cli data-section-id=\"1eybxuz\" data-start=\"3776\" data-end=\"3807\"\u003eExtra-quality optical calcite\u003c\/li\u003e\n\u003cli data-section-id=\"1xarldk\" data-start=\"3808\" data-end=\"3857\"\u003eTransparent to highly translucent viewing areas\u003c\/li\u003e\n\u003cli data-section-id=\"zqi477\" data-start=\"3858\" data-end=\"3890\"\u003eVivid internal rainbow flashes\u003c\/li\u003e\n\u003cli data-section-id=\"125b9pv\" data-start=\"3891\" data-end=\"3952\"\u003eBlue, violet, green, yellow, orange, and red spectral color\u003c\/li\u003e\n\u003cli data-section-id=\"y7ruez\" data-start=\"3953\" data-end=\"3986\"\u003eBroad natural cleavage surfaces\u003c\/li\u003e\n\u003cli data-section-id=\"oqco3w\" data-start=\"3987\" data-end=\"4034\"\u003eStrong internal depth and layered reflections\u003c\/li\u003e\n\u003cli data-section-id=\"13qbx20\" data-start=\"4035\" data-end=\"4086\"\u003eCalcite’s characteristic double-refraction effect\u003c\/li\u003e\n\u003cli data-section-id=\"1qbd5v5\" data-start=\"4087\" data-end=\"4132\"\u003eDistinctive wedge-shaped architectural form\u003c\/li\u003e\n\u003cli data-section-id=\"hjsldz\" data-start=\"4133\" data-end=\"4171\"\u003eNaturally self-standing presentation\u003c\/li\u003e\n\u003cli data-section-id=\"nkpssa\" data-start=\"4172\" data-end=\"4215\"\u003eCompact size with excellent visual impact\u003c\/li\u003e\n\u003cli data-section-id=\"1q7iliw\" data-start=\"4216\" data-end=\"4250\"\u003eMaterial from Maharashtra, India\u003c\/li\u003e\n\u003cli data-section-id=\"jv8bt8\" data-start=\"4251\" data-end=\"4291\"\u003eBoth decorative and educational appeal\u003c\/li\u003e\n\u003cli data-section-id=\"xjwr3e\" data-start=\"4292\" data-end=\"4332\"\u003eOne-of-a-kind natural mineral specimen\u003c\/li\u003e\n\u003cli data-section-id=\"1bmwm75\" data-start=\"4333\" data-end=\"4358\"\u003eExact specimen pictured\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"4360\" data-end=\"4567\"\u003ePerfect for collectors of optical calcite, rainbow calcite, transparent minerals, birefringent crystals, natural optical phenomena, Indian minerals, educational specimens, and self-standing mineral displays.\u003c\/p\u003e\n\u003cp data-start=\"4569\" data-end=\"4619\"\u003eProfessionally packaged and shipped from Colorado.\u003c\/p\u003e\n\u003cp data-start=\"4621\" data-end=\"4663\"\u003eYou will receive the exact specimen shown.\u003c\/p\u003e\n\u003cp data-start=\"4665\" data-end=\"4800\"\u003eEvery order is backed by our commitment to quality and customer satisfaction. Thank you for supporting our family-owned small business.\u003c\/p\u003e","brand":"Serenity Soul Stones","offers":[{"title":"Default Title","offer_id":49743751708922,"sku":null,"price":32.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/2328\/8826\/files\/RainbowOpticalCalcite_Maharashtra_India_0.32lbs_5.jpg?v=1784836056"},{"product_id":"monumental-fluorescent-dogtooth-calcite-formation-sweetwater-mine-missouri-usa-30-37-lbs","title":"Monumental Fluorescent Dogtooth Calcite Formation – Sweetwater Mine, Missouri, USA – 30.37 lbs","description":"\u003cp data-start=\"117\" data-end=\"512\" class=\"PDq2pG_selectionAnchorContainer\"\u003eA monumental Fluorescent Dogtooth Calcite Formation from the Sweetwater Mine in Reynolds County, Missouri, featuring an extraordinary landscape of large scalenohedral calcite crystals rising from substantial natural matrix. Weighing more than 30 pounds and standing approximately 14 inches tall, this is a genuine statement-sized American mineral specimen with commanding architectural presence.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"514\" data-end=\"963\"\u003eThe formation is covered with numerous intergrown dogtooth calcite crystals ranging from broad, substantial points to smaller secondary growth. These sharply tapered scalenohedrons project in multiple directions, creating deep valleys, elevated crystal ridges, and an almost fortress-like silhouette. Crystallization continues across much of the specimen, providing several viable display angles and revealing new formations as the piece is rotated.\u003c\/p\u003e\n\u003cp data-start=\"965\" data-end=\"1293\"\u003eUnder ordinary lighting, the calcite displays earthy cream, tan, amber, gray, and dark brown coloration. Natural iron staining, mineral coatings, inclusions, contacts, cleavage features, and irregular growth surfaces preserve the rugged character of the formation and contrast beautifully with its more reflective crystal faces.\u003c\/p\u003e\n\u003cp data-start=\"1295\" data-end=\"1779\"\u003eThe specimen becomes dramatically different under ultraviolet illumination. Distinct areas produce alternating red-to-orange and blue-to-blue-white fluorescence, outlining individual crystals and mineralized zones across the formation. Some sections glow intensely red while neighboring areas respond in bright blue-white, creating an exceptional multicolored fluorescent display. The precise appearance and intensity may vary with the wavelength, strength, and type of UV light used.\u003c\/p\u003e\n\u003cp data-start=\"1781\" data-end=\"2187\"\u003eThe Sweetwater Mine is internationally recognized among collectors for its calcite, galena, marcasite, chalcopyrite, and associated Mississippi Valley–type mineralization. Although the locality is especially famous for the trade-named “Dragon Scale Calcite,” this specimen exhibits a predominantly classic dogtooth or scalenohedral crystal habit rather than the distinctive phantom-like Dragon Scale style.\u003c\/p\u003e\n\u003cp data-start=\"2189\" data-end=\"2667\"\u003eMeasuring approximately 10 × 10 × 14 inches and weighing 30.37 pounds, this specimen is substantially larger than the majority of Sweetwater calcite formations available to private collectors. Its remarkable scale, complex crystallization, locality significance, multidirectional structure, and contrasting fluorescent responses make it an important display piece for a serious mineral collection, gallery, museum-style exhibit, office, showroom, or fluorescent-mineral display.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1a3ueyz\" data-start=\"2669\" data-end=\"2686\"\u003eSpecifications\u003c\/h2\u003e\n\u003cp data-start=\"2688\" data-end=\"2704\"\u003eMineral: Calcite\u003c\/p\u003e\n\u003cp data-start=\"2706\" data-end=\"2781\"\u003eFormation: Monumental intergrown dogtooth calcite cluster on natural matrix\u003c\/p\u003e\n\u003cp data-start=\"2783\" data-end=\"2842\"\u003eCrystal Habit: Scalenohedral or “dogtooth” calcite crystals\u003c\/p\u003e\n\u003cp data-start=\"2844\" data-end=\"2912\"\u003eLocality: Sweetwater Mine, Ellington, Reynolds County, Missouri, USA\u003c\/p\u003e\n\u003cp data-start=\"2914\" data-end=\"2945\"\u003eMining District: Viburnum Trend\u003c\/p\u003e\n\u003cp data-start=\"2947\" data-end=\"2989\"\u003eWeight: 30.37 lbs (approximately 13.78 kg)\u003c\/p\u003e\n\u003cp data-start=\"2991\" data-end=\"3036\"\u003eDimensions: Approximately 10 × 10 × 14 inches\u003c\/p\u003e\n\u003cp data-start=\"3038\" data-end=\"3116\"\u003eColor under White Light: Cream, tan, amber, gray, dark brown, and nearly black\u003c\/p\u003e\n\u003cp data-start=\"3118\" data-end=\"3198\"\u003eFluorescence: Alternating red-to-orange and blue-to-blue-white fluorescent zones\u003c\/p\u003e\n\u003cp data-start=\"3200\" data-end=\"3339\"\u003eUV Disclosure: Fluorescent color and intensity may vary according to UV wavelength, lamp strength, ambient lighting, and viewing conditions\u003c\/p\u003e\n\u003cp data-start=\"3341\" data-end=\"3436\"\u003eCrystal Habit: Large tapered scalenohedrons with extensive intergrown secondary crystallization\u003c\/p\u003e\n\u003cp data-start=\"3438\" data-end=\"3497\"\u003eLuster: Vitreous to subvitreous with naturally coated areas\u003c\/p\u003e\n\u003cp data-start=\"3499\" data-end=\"3581\"\u003eTransparency: Translucent to opaque with selected light-transmitting crystal edges\u003c\/p\u003e\n\u003cp data-start=\"3583\" data-end=\"3607\"\u003eCrystal System: Trigonal\u003c\/p\u003e\n\u003cp data-start=\"3609\" data-end=\"3632\"\u003eChemical Formula: CaCO₃\u003c\/p\u003e\n\u003cp data-start=\"3634\" data-end=\"3664\"\u003eMohs Hardness: Approximately 3\u003c\/p\u003e\n\u003cp data-start=\"3666\" data-end=\"3717\"\u003eMatrix: Substantial natural mineralized host matrix\u003c\/p\u003e\n\u003cp data-start=\"3719\" data-end=\"3784\"\u003eDisplay Coverage: Extensive crystallization across multiple sides\u003c\/p\u003e\n\u003cp data-start=\"3786\" data-end=\"3846\"\u003eDisplay: Large, naturally self-supporting statement specimen\u003c\/p\u003e\n\u003cp data-start=\"3848\" data-end=\"4116\"\u003eCondition: Natural mineral specimen with inherent contacts, cleavage, incomplete or contacted terminations, inclusions, surface coatings, iron staining, extraction-related irregularities, and minor edge damage consistent with its exceptional size and geological origin\u003c\/p\u003e\n\u003cp data-start=\"4118\" data-end=\"4193\"\u003eHandling: Requires two-person handling and a strong, stable display surface\u003c\/p\u003e\n\u003cp data-start=\"4195\" data-end=\"4215\"\u003eExact specimen shown\u003c\/p\u003e\n\u003ch2 data-section-id=\"o1zq8n\" data-start=\"4217\" data-end=\"4249\"\u003eAbout Sweetwater Mine Calcite\u003c\/h2\u003e\n\u003cp data-start=\"4251\" data-end=\"4614\"\u003eCalcite is a calcium carbonate mineral that crystallizes in the trigonal crystal system. It develops in an exceptionally wide range of habits, including rhombohedrons, flattened plates, prismatic crystals, and sharply tapered scalenohedrons. The elongated pointed crystals visible throughout this specimen are commonly described by collectors as dogtooth calcite.\u003c\/p\u003e\n\u003cp data-start=\"4616\" data-end=\"4930\"\u003eThe Sweetwater Mine is part of southeastern Missouri’s Viburnum Trend, an important Mississippi Valley–type lead-zinc mining district. Mineral-rich fluids circulated through carbonate rock, producing deposits containing galena, sphalerite, calcite, dolomite, marcasite, chalcopyrite, and other associated minerals.\u003c\/p\u003e\n\u003cp data-start=\"4932\" data-end=\"5347\"\u003eSweetwater is especially celebrated for its large calcite crystals and the visually distinctive material marketed as Dragon Scale Calcite. Dragon Scale specimens typically exhibit recognizable internal zoning or phantom-like patterns resembling overlapping scales. While this specimen comes from the same famous locality, its dominant crystal habit is more accurately described as dogtooth or scalenohedral calcite.\u003c\/p\u003e\n\u003cp data-start=\"5349\" data-end=\"5753\"\u003eFluorescence occurs when a mineral absorbs ultraviolet energy and releases part of that energy as visible light. Different trace elements, structural defects, mineral inclusions, and generations of calcite growth can produce noticeably different responses. The alternating red and blue fluorescent regions on this formation visually reveal variations that are much less obvious under normal illumination.\u003c\/p\u003e\n\u003cp data-start=\"5755\" data-end=\"6122\"\u003eCalcite possesses perfect cleavage and is considerably softer than quartz. This specimen should not be soaked, exposed to acids, or cleaned with harsh chemicals. Use a soft dry brush or carefully controlled low-pressure air when necessary. Due to its weight and projecting crystals, it should always be lifted from beneath the matrix rather than by any crystal point.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1punl39\" data-start=\"6124\" data-end=\"6142\"\u003eCollector Notes\u003c\/h2\u003e\n\u003cp data-start=\"6144\" data-end=\"6167\"\u003eThis specimen features:\u003c\/p\u003e\n\u003cul data-start=\"6169\" data-end=\"7114\"\u003e\n\u003cli data-section-id=\"5e679x\" data-start=\"6169\" data-end=\"6206\"\u003eMonumental 30.37-pound display size\u003c\/li\u003e\n\u003cli data-section-id=\"14u9obq\" data-start=\"6207\" data-end=\"6245\"\u003eAuthentic Sweetwater Mine provenance\u003c\/li\u003e\n\u003cli data-section-id=\"1degruz\" data-start=\"6246\" data-end=\"6281\"\u003eClassic American mineral locality\u003c\/li\u003e\n\u003cli data-section-id=\"142swgi\" data-start=\"6282\" data-end=\"6326\"\u003eExtensive dogtooth calcite crystallization\u003c\/li\u003e\n\u003cli data-section-id=\"40da2k\" data-start=\"6327\" data-end=\"6375\"\u003eNumerous large, tapered scalenohedral crystals\u003c\/li\u003e\n\u003cli data-section-id=\"jo2jym\" data-start=\"6376\" data-end=\"6435\"\u003eSmaller secondary crystals covering much of the formation\u003c\/li\u003e\n\u003cli data-section-id=\"9535l0\" data-start=\"6436\" data-end=\"6488\"\u003eComplex architectural and fortress-like silhouette\u003c\/li\u003e\n\u003cli data-section-id=\"52nrcg\" data-start=\"6489\" data-end=\"6525\"\u003eStrong three-dimensional structure\u003c\/li\u003e\n\u003cli data-section-id=\"ten71u\" data-start=\"6526\" data-end=\"6567\"\u003eSeveral attractive display orientations\u003c\/li\u003e\n\u003cli data-section-id=\"1gnld1k\" data-start=\"6568\" data-end=\"6607\"\u003eAlternating fluorescent mineral zones\u003c\/li\u003e\n\u003cli data-section-id=\"kmfgy5\" data-start=\"6608\" data-end=\"6661\"\u003eRed-to-orange fluorescence across substantial areas\u003c\/li\u003e\n\u003cli data-section-id=\"rn94ds\" data-start=\"6662\" data-end=\"6715\"\u003eContrasting blue-to-blue-white fluorescent response\u003c\/li\u003e\n\u003cli data-section-id=\"sd2z70\" data-start=\"6716\" data-end=\"6781\"\u003eDramatic transformation between white light and UV illumination\u003c\/li\u003e\n\u003cli data-section-id=\"rl5140\" data-start=\"6782\" data-end=\"6833\"\u003eNatural iron staining and earthy mineral coatings\u003c\/li\u003e\n\u003cli data-section-id=\"8t5feo\" data-start=\"6834\" data-end=\"6894\"\u003ePreserved contacts, cleavage features, and growth textures\u003c\/li\u003e\n\u003cli data-section-id=\"13me8ji\" data-start=\"6895\" data-end=\"6928\"\u003eSubstantial natural host matrix\u003c\/li\u003e\n\u003cli data-section-id=\"1a7rpkg\" data-start=\"6929\" data-end=\"6990\"\u003eExceptional size compared with typical Sweetwater specimens\u003c\/li\u003e\n\u003cli data-section-id=\"1fmynfh\" data-start=\"6991\" data-end=\"7046\"\u003eStrong American-mineral and locality-collector appeal\u003c\/li\u003e\n\u003cli data-section-id=\"1imxvvv\" data-start=\"7047\" data-end=\"7088\"\u003eOne-of-a-kind natural mineral formation\u003c\/li\u003e\n\u003cli data-section-id=\"1bmwm75\" data-start=\"7089\" data-end=\"7114\"\u003eExact specimen pictured\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"7116\" data-end=\"7403\"\u003ePerfect for collectors of Sweetwater Mine minerals, Missouri calcite, dogtooth calcite, scalenohedral calcite, fluorescent minerals, American minerals, Viburnum Trend specimens, monumental mineral formations, statement crystals, museum-style displays, and significant locality specimens.\u003c\/p\u003e\n\u003cp data-start=\"7405\" data-end=\"7607\"\u003eDue to its exceptional size, weight, and projecting crystals, this specimen requires specialized protective packaging and careful handling. Please verify shipping or pickup arrangements before purchase.\u003c\/p\u003e\n\u003cp data-start=\"7609\" data-end=\"7659\"\u003eProfessionally packaged and shipped from Colorado.\u003c\/p\u003e\n\u003cp data-start=\"7661\" data-end=\"7703\"\u003eYou will receive the exact specimen shown.\u003c\/p\u003e\n\u003cp data-start=\"7705\" data-end=\"7840\"\u003eEvery order is backed by our commitment to quality and customer satisfaction. Thank you for supporting our family-owned small business.\u003c\/p\u003e","brand":"Serenity Soul Stones","offers":[{"title":"Default Title","offer_id":49746421186810,"sku":null,"price":2395.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/2328\/8826\/files\/MonumentalFluorescentDogtoothCalciteFormation_SweetwaterMine_Missouri_30.37lbs_11.jpg?v=1784841522"},{"product_id":"garden-optical-calcite-with-rainbows-maharashtra-india-0-41-lbs","title":"Garden Optical Calcite with Rainbows – Maharashtra, India – 0.41 lbs","description":"\u003cp data-start=\"96\" data-end=\"452\" class=\"PDq2pG_selectionAnchorContainer\"\u003eA distinctive Garden Optical Calcite specimen from Maharashtra, India, featuring impressive transparency, complex internal scenery, and vivid rainbow reflections. Mounted upright on a custom display base, the calcite’s broad viewing faces provide a window into layered mineral inclusions, growth textures, cleavage planes, and reflective internal features.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"454\" data-end=\"872\"\u003eThe specimen ranges from nearly colorless to softly honey-toned depending on the lighting. Along the lower portion, dark brown, golden, and earthy mineral inclusions form landscape-like patterns resembling soil, moss, or a miniature garden preserved inside the crystal. These natural inclusions give the piece its descriptive “Garden Calcite” trade name and create dramatic contrast against the clearer upper sections.\u003c\/p\u003e\n\u003cp data-start=\"874\" data-end=\"1308\"\u003eMultiple internal planes produce vibrant spectral reflections when the specimen is moved beneath direct light. Flashes of red, orange, yellow, green, blue, and violet appear at selected angles, including several broad rainbow bands visible through the main viewing faces. Internal veils, layered cleavage features, and crystal-shaped inclusions add considerable depth and ensure that the appearance changes as the specimen is rotated.\u003c\/p\u003e\n\u003cp data-start=\"1310\" data-end=\"1532\"\u003eThe calcite also exhibits natural birefringence, or double refraction. Through sufficiently transparent areas, transmitted objects and patterns may appear doubled because light entering the mineral separates into two rays.\u003c\/p\u003e\n\u003cp data-start=\"1534\" data-end=\"1907\"\u003eMeasuring approximately 3 × 2 × 3.5 inches and weighing 0.41 pounds, this is a substantial optical calcite display with excellent clarity and strong visual character. Its combination of landscape-like inclusions, warm coloration, rainbow activity, optical properties, and elevated presentation makes it far more distinctive than an ordinary clear calcite cleavage specimen.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1a3ueyz\" data-start=\"1909\" data-end=\"1926\"\u003eSpecifications\u003c\/h2\u003e\n\u003cp data-start=\"1928\" data-end=\"1944\"\u003eMineral: Calcite\u003c\/p\u003e\n\u003cp data-start=\"1946\" data-end=\"2009\"\u003eVariety\/Trade Description: Garden Optical Calcite with Rainbows\u003c\/p\u003e\n\u003cp data-start=\"2011\" data-end=\"2039\"\u003eLocality: Maharashtra, India\u003c\/p\u003e\n\u003cp data-start=\"2041\" data-end=\"2083\"\u003eWeight: 0.41 lbs (approximately 186 grams)\u003c\/p\u003e\n\u003cp data-start=\"2085\" data-end=\"2129\"\u003eDimensions: Approximately 3 × 2 × 3.5 inches\u003c\/p\u003e\n\u003cp data-start=\"2131\" data-end=\"2208\"\u003eColor: Colorless to pale honey with golden, brown, and dark earthy inclusions\u003c\/p\u003e\n\u003cp data-start=\"2210\" data-end=\"2294\"\u003eForm: Substantial natural calcite cleavage specimen with broad optical viewing faces\u003c\/p\u003e\n\u003cp data-start=\"2296\" data-end=\"2437\"\u003eInternal Features: Landscape-like mineral inclusions, internal veils, reflective planes, cleavage features, and rainbow-producing separations\u003c\/p\u003e\n\u003cp data-start=\"2439\" data-end=\"2564\"\u003eRainbow Effect: Multicolored spectral reflections produced where light interacts with internal cleavage and fracture surfaces\u003c\/p\u003e\n\u003cp data-start=\"2566\" data-end=\"2664\"\u003eOptical Property: Strong birefringence or double refraction through sufficiently transparent areas\u003c\/p\u003e\n\u003cp data-start=\"2666\" data-end=\"2696\"\u003eLuster: Vitreous to glass-like\u003c\/p\u003e\n\u003cp data-start=\"2698\" data-end=\"2770\"\u003eTransparency: Transparent to translucent with included and clouded zones\u003c\/p\u003e\n\u003cp data-start=\"2772\" data-end=\"2796\"\u003eCrystal System: Trigonal\u003c\/p\u003e\n\u003cp data-start=\"2798\" data-end=\"2821\"\u003eChemical Formula: CaCO₃\u003c\/p\u003e\n\u003cp data-start=\"2823\" data-end=\"2853\"\u003eMohs Hardness: Approximately 3\u003c\/p\u003e\n\u003cp data-start=\"2855\" data-end=\"2915\"\u003eMounting: Affixed to a custom display base produced in-house\u003c\/p\u003e\n\u003cp data-start=\"2917\" data-end=\"2961\"\u003eDisplay: Elevated upright collector specimen\u003c\/p\u003e\n\u003cp data-start=\"2963\" data-end=\"3103\"\u003eCondition: Natural calcite with inherent cleavage lines, internal fractures, inclusions, contacts, surface textures, and edge irregularities\u003c\/p\u003e\n\u003cp data-start=\"3105\" data-end=\"3125\"\u003eExact specimen shown\u003c\/p\u003e\n\u003ch2 data-section-id=\"xxgasq\" data-start=\"3127\" data-end=\"3158\"\u003eAbout Garden Optical Calcite\u003c\/h2\u003e\n\u003cp data-start=\"3160\" data-end=\"3452\"\u003eCalcite is a calcium carbonate mineral recognized for its enormous variety of forms and its perfect rhombohedral cleavage. It separates along three consistent directions that do not meet at right angles, producing the characteristic slanted geometry visible in many optical calcite specimens.\u003c\/p\u003e\n\u003cp data-start=\"3454\" data-end=\"3833\"\u003e“Garden Calcite” is a descriptive trade term rather than a separate mineral variety. It refers to transparent or translucent calcite containing natural mineral inclusions and internal structures that resemble miniature landscapes, plants, soil, or underwater scenery. The precise composition of the brown and dark inclusions in this specimen has not been analytically determined.\u003c\/p\u003e\n\u003cp data-start=\"3835\" data-end=\"4089\"\u003eTransparent calcite is often described as optical calcite because of its pronounced birefringence. Light passing through the crystal divides into two rays, which can create a doubled image when the specimen is held over text, lines, or patterned objects.\u003c\/p\u003e\n\u003cp data-start=\"4091\" data-end=\"4327\"\u003eThe internal rainbow colors are produced by a different optical effect. Thin cleavage separations and natural internal fractures interact with white light, generating spectral flashes that change with the viewing angle and light source.\u003c\/p\u003e\n\u003cp data-start=\"4329\" data-end=\"4602\"\u003eCalcite is significantly softer and more delicate than quartz. It should be kept away from acids, harsh chemicals, prolonged soaking, and sudden temperature changes. Handle the specimen by its display base and clean it only with a soft dry brush or gentle microfiber cloth.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1punl39\" data-start=\"4604\" data-end=\"4622\"\u003eCollector Notes\u003c\/h2\u003e\n\u003cp data-start=\"4624\" data-end=\"4647\"\u003eThis specimen features:\u003c\/p\u003e\n\u003cul data-start=\"4649\" data-end=\"5431\"\u003e\n\u003cli data-section-id=\"7ne2m3\" data-start=\"4649\" data-end=\"4698\"\u003eNatural optical calcite from Maharashtra, India\u003c\/li\u003e\n\u003cli data-section-id=\"2eh2i0\" data-start=\"4699\" data-end=\"4732\"\u003eSubstantial 0.41-pound specimen\u003c\/li\u003e\n\u003cli data-section-id=\"1uyfzcf\" data-start=\"4733\" data-end=\"4781\"\u003eBroad transparent-to-translucent viewing faces\u003c\/li\u003e\n\u003cli data-section-id=\"1qp0g8p\" data-start=\"4782\" data-end=\"4839\"\u003eLandscape-like brown, gold, and dark mineral inclusions\u003c\/li\u003e\n\u003cli data-section-id=\"1yztezf\" data-start=\"4840\" data-end=\"4871\"\u003eGarden-style internal scenery\u003c\/li\u003e\n\u003cli data-section-id=\"12x4txr\" data-start=\"4872\" data-end=\"4917\"\u003eWarm honey coloration under direct lighting\u003c\/li\u003e\n\u003cli data-section-id=\"1voyzxn\" data-start=\"4918\" data-end=\"4964\"\u003eMultiple internal growth and cleavage layers\u003c\/li\u003e\n\u003cli data-section-id=\"byugmg\" data-start=\"4965\" data-end=\"4995\"\u003eBroad spectral rainbow bands\u003c\/li\u003e\n\u003cli data-section-id=\"ogbtow\" data-start=\"4996\" data-end=\"5034\"\u003eSmaller concentrated rainbow flashes\u003c\/li\u003e\n\u003cli data-section-id=\"1h50a9g\" data-start=\"5035\" data-end=\"5093\"\u003eRed, orange, yellow, green, blue, and violet reflections\u003c\/li\u003e\n\u003cli data-section-id=\"12nrial\" data-start=\"5094\" data-end=\"5132\"\u003eNatural double-refraction properties\u003c\/li\u003e\n\u003cli data-section-id=\"ash5pt\" data-start=\"5133\" data-end=\"5184\"\u003eStrong optical depth that changes during rotation\u003c\/li\u003e\n\u003cli data-section-id=\"c93o28\" data-start=\"5185\" data-end=\"5228\"\u003eAttractive rhombohedral cleavage geometry\u003c\/li\u003e\n\u003cli data-section-id=\"1obdbtw\" data-start=\"5229\" data-end=\"5268\"\u003eCustom display base produced in-house\u003c\/li\u003e\n\u003cli data-section-id=\"10k92dc\" data-start=\"5269\" data-end=\"5312\"\u003eImpressive 3.5-inch elevated presentation\u003c\/li\u003e\n\u003cli data-section-id=\"1xkzmle\" data-start=\"5313\" data-end=\"5364\"\u003eDecorative, mineralogical, and educational appeal\u003c\/li\u003e\n\u003cli data-section-id=\"xjwr3e\" data-start=\"5365\" data-end=\"5405\"\u003eOne-of-a-kind natural mineral specimen\u003c\/li\u003e\n\u003cli data-section-id=\"1bmwm75\" data-start=\"5406\" data-end=\"5431\"\u003eExact specimen pictured\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"5433\" data-end=\"5651\"\u003ePerfect for collectors of optical calcite, garden calcite, included crystals, rainbow minerals, transparent calcite, birefringent minerals, Indian minerals, Maharashtra specimens, and unusual natural optical phenomena.\u003c\/p\u003e\n\u003cp data-start=\"5653\" data-end=\"5703\"\u003eProfessionally packaged and shipped from Colorado.\u003c\/p\u003e\n\u003cp data-start=\"5705\" data-end=\"5747\"\u003eYou will receive the exact specimen shown.\u003c\/p\u003e\n\u003cp data-start=\"5749\" data-end=\"5884\"\u003eEvery order is backed by our commitment to quality and customer satisfaction. Thank you for supporting our family-owned small business.\u003c\/p\u003e","brand":"Serenity Soul Stones","offers":[{"title":"Default Title","offer_id":49749626519802,"sku":null,"price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/2328\/8826\/files\/GardenOpticalCalcitewithRainbows_Maharashtra_India_0.41lbs_6.jpg?v=1784914420"},{"product_id":"double-terminated-mangano-calcite-with-pyrite-uv-huanzala-mine-peru-15-grams","title":"Double-Terminated Mangano Calcite with Pyrite UV – Huanzala Mine, Peru – 15 Grams","description":"\u003cp data-start=\"106\" data-end=\"442\" class=\"PDq2pG_selectionAnchorContainer\"\u003eA striking Double-Terminated Mangano Calcite with Pyrite specimen from the renowned Huanzala Mine in Ancash, Peru. Despite its compact size, the specimen offers exceptional visual impact through the contrast of a substantial translucent calcite crystal, bright metallic pyrite, sparkling pale matrix, and vivid ultraviolet fluorescence.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"444\" data-end=\"737\"\u003eThe primary calcite crystal displays a blocky, elongated form with naturally developed termination faces visible at both ends. Under ordinary lighting, it appears colorless to softly cream with translucent areas, internal growth structures, subtle zoning, and naturally textured crystal faces.\u003c\/p\u003e\n\u003cp data-start=\"739\" data-end=\"1112\"\u003eSeveral sharply defined pyrite crystals emerge from the surrounding matrix and occur against the calcite itself. Their bright brassy-gold metallic luster creates dramatic contrast against the pale calcite and finely crystallized matrix. Smaller metallic crystals are visible from several viewing angles, making the reverse nearly as interesting as the primary display face.\u003c\/p\u003e\n\u003cp data-start=\"1114\" data-end=\"1503\"\u003eUnder ultraviolet illumination, the manganese-bearing calcite transforms into an intense fluorescent coral-pink to red-orange. The crystal’s internal zoning and termination geometry become especially visible under UV, while the pyrite remains dark and metallic against the glowing calcite. Fluorescence can vary according to the wavelength, strength, and color balance of the UV lamp used.\u003c\/p\u003e\n\u003cp data-start=\"1505\" data-end=\"1953\"\u003eThe Huanzala Mine is internationally recognized for highly collectible pyrite, fluorite, calcite, sphalerite, and complex mineral associations. Manganese-bearing calcite from Peru is documented for its strong pink fluorescence, making this specimen an attractive combination of classic locality material and dramatic UV response.\u003c\/p\u003e\n\u003cp data-start=\"1955\" data-end=\"2192\"\u003eMeasuring approximately 1 × 1 × 0.5 inches and weighing 15 grams, this mounted thumbnail specimen combines strong crystallography, vivid fluorescence, metallic contrast, and prestigious locality provenance in a highly displayable format.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1a3ueyz\" data-start=\"2194\" data-end=\"2211\"\u003eSpecifications\u003c\/h2\u003e\n\u003cp data-start=\"2213\" data-end=\"2260\"\u003eMinerals: Manganese-Bearing Calcite with Pyrite\u003c\/p\u003e\n\u003cp data-start=\"2262\" data-end=\"2301\"\u003eTrade Name: Mangano Calcite with Pyrite\u003c\/p\u003e\n\u003cp data-start=\"2303\" data-end=\"2390\"\u003eLocality: Huanzala Mine, Huanzala, Huallanca District, Bolognesi Province, Ancash, Peru\u003c\/p\u003e\n\u003cp data-start=\"2392\" data-end=\"2408\"\u003eWeight: 15 grams\u003c\/p\u003e\n\u003cp data-start=\"2410\" data-end=\"2454\"\u003eDimensions: Approximately 1 × 1 × 0.5 inches\u003c\/p\u003e\n\u003cp data-start=\"2456\" data-end=\"2543\"\u003ePrimary Formation: Blocky calcite crystal with termination faces developed at both ends\u003c\/p\u003e\n\u003cp data-start=\"2545\" data-end=\"2636\"\u003eColor Under White Light: Colorless, translucent white, pale cream, and metallic brassy gold\u003c\/p\u003e\n\u003cp data-start=\"2638\" data-end=\"2715\"\u003eFluorescence: Intense coral-pink to red-orange under ultraviolet illumination\u003c\/p\u003e\n\u003cp data-start=\"2717\" data-end=\"2845\"\u003eUV Disclosure: Fluorescent color and intensity may vary with UV wavelength, lamp strength, ambient lighting, and camera settings\u003c\/p\u003e\n\u003cp data-start=\"2847\" data-end=\"2898\"\u003eAssociated Mineral: Bright metallic pyrite crystals\u003c\/p\u003e\n\u003cp data-start=\"2900\" data-end=\"3007\"\u003eMatrix: Pale finely crystallized natural matrix; exact matrix minerals have not been analytically confirmed\u003c\/p\u003e\n\u003cp data-start=\"3009\" data-end=\"3054\"\u003eLuster: Vitreous calcite with metallic pyrite\u003c\/p\u003e\n\u003cp data-start=\"3056\" data-end=\"3123\"\u003eTransparency: Transparent to translucent calcite with opaque pyrite\u003c\/p\u003e\n\u003cp data-start=\"3125\" data-end=\"3157\"\u003eCalcite Crystal System: Trigonal\u003c\/p\u003e\n\u003cp data-start=\"3159\" data-end=\"3225\"\u003eCalcite Chemical Formula: CaCO₃ with manganese-bearing composition\u003c\/p\u003e\n\u003cp data-start=\"3227\" data-end=\"3287\"\u003eMounting: Affixed to a custom display base produced in-house\u003c\/p\u003e\n\u003cp data-start=\"3289\" data-end=\"3452\"\u003eCondition: Natural mineral specimen with inherent contacts, inclusions, growth textures, internal cleavage features, surface irregularities, and matrix attachments\u003c\/p\u003e\n\u003cp data-start=\"3454\" data-end=\"3474\"\u003eExact specimen shown\u003c\/p\u003e\n\u003ch2 data-section-id=\"xz3gk0\" data-start=\"3476\" data-end=\"3511\"\u003eAbout Mangano Calcite and Pyrite\u003c\/h2\u003e\n\u003cp data-start=\"3513\" data-end=\"3875\"\u003e“Mangano calcite” is the popular collector and trade name for manganese-bearing calcite. Manganese substitutes for a portion of the calcium within the calcite structure and may produce pale pink coloration, strong fluorescence, or both. A specimen can appear nearly colorless under ordinary lighting yet glow intensely pink or red-orange under ultraviolet light.\u003c\/p\u003e\n\u003cp data-start=\"3877\" data-end=\"4104\"\u003eCalcite is a calcium carbonate mineral known for its wide variety of crystal habits, perfect cleavage, and sensitivity to acids. The developed faces at both ends give this crystal its distinctive double-terminated presentation.\u003c\/p\u003e\n\u003cp data-start=\"4106\" data-end=\"4308\"\u003ePyrite is an iron sulfide mineral recognized by its brassy-gold metallic appearance. Its reflective crystals provide a strong visual contrast against the pale matrix and brilliantly fluorescent calcite.\u003c\/p\u003e\n\u003cp data-start=\"4310\" data-end=\"4537\"\u003eThe Huanzala Mine is one of Peru’s most celebrated collector-mineral localities and is particularly respected for lustrous pyrite and complex combinations of calcite, fluorite, sphalerite, quartz, and other associated minerals.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1punl39\" data-start=\"4539\" data-end=\"4557\"\u003eCollector Notes\u003c\/h2\u003e\n\u003cp data-start=\"4559\" data-end=\"4582\"\u003eThis specimen features:\u003c\/p\u003e\n\u003cul data-start=\"4584\" data-end=\"5069\"\u003e\n\u003cli data-section-id=\"q5c5h4\" data-start=\"4584\" data-end=\"4629\"\u003eDouble-terminated manganese-bearing calcite\u003c\/li\u003e\n\u003cli data-section-id=\"18jk488\" data-start=\"4630\" data-end=\"4680\"\u003eIntense coral-pink to red-orange UV fluorescence\u003c\/li\u003e\n\u003cli data-section-id=\"kmtbh8\" data-start=\"4681\" data-end=\"4734\"\u003eTranslucent calcite with visible internal structure\u003c\/li\u003e\n\u003cli data-section-id=\"4883cv\" data-start=\"4735\" data-end=\"4771\"\u003eAttractive blocky crystal geometry\u003c\/li\u003e\n\u003cli data-section-id=\"57e99b\" data-start=\"4772\" data-end=\"4814\"\u003eMultiple bright metallic pyrite crystals\u003c\/li\u003e\n\u003cli data-section-id=\"7r8row\" data-start=\"4815\" data-end=\"4850\"\u003eSparkling pale crystalline matrix\u003c\/li\u003e\n\u003cli data-section-id=\"1twwiw7\" data-start=\"4851\" data-end=\"4900\"\u003eDramatic contrast under both white light and UV\u003c\/li\u003e\n\u003cli data-section-id=\"1n4kmm0\" data-start=\"4901\" data-end=\"4937\"\u003eMultiple attractive viewing angles\u003c\/li\u003e\n\u003cli data-section-id=\"11dhm0n\" data-start=\"4938\" data-end=\"4972\"\u003eAuthentic Huanzala Mine locality\u003c\/li\u003e\n\u003cli data-section-id=\"178uct1\" data-start=\"4973\" data-end=\"5003\"\u003eCompact mounted presentation\u003c\/li\u003e\n\u003cli data-section-id=\"1obdbtw\" data-start=\"5004\" data-end=\"5043\"\u003eCustom display base produced in-house\u003c\/li\u003e\n\u003cli data-section-id=\"1bmwm75\" data-start=\"5044\" data-end=\"5069\"\u003eExact specimen pictured\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"5071\" data-end=\"5281\"\u003ePerfect for collectors of fluorescent minerals, mangano calcite, Peruvian pyrite, Huanzala Mine specimens, mounted thumbnails, manganese-bearing minerals, calcite crystals, and contrasting mineral associations.\u003c\/p\u003e\n\u003cp data-start=\"5283\" data-end=\"5333\"\u003eProfessionally packaged and shipped from Colorado.\u003c\/p\u003e\n\u003cp data-start=\"5335\" data-end=\"5377\"\u003eYou will receive the exact specimen shown.\u003c\/p\u003e\n\u003cp data-start=\"5379\" data-end=\"5514\"\u003eEvery order is backed by our commitment to quality and customer satisfaction. Thank you for supporting our family-owned small business.\u003c\/p\u003e","brand":"Serenity Soul Stones","offers":[{"title":"Default Title","offer_id":49749644247290,"sku":null,"price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/2328\/8826\/files\/20260724_101716.jpg?v=1784916638"},{"product_id":"uv-reactive-optical-calcite-with-rainbows-maharashtra-india-0-67-lbs","title":"UV-Reactive Optical Calcite with Rainbows – Maharashtra, India – 0.67 lbs","description":"\u003cp data-start=\"101\" data-end=\"492\" class=\"PDq2pG_selectionAnchorContainer\"\u003eAn impressive UV-Reactive Optical Calcite specimen from Maharashtra, India, featuring exceptional internal depth, broad transparent viewing areas, natural rainbow flashes, and a beautiful fluorescent response. Mounted upright on a custom display base, the specimen presents as a substantial architectural crystal with strikingly different appearances under ordinary and ultraviolet lighting.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"494\" data-end=\"899\"\u003eUnder white light, the calcite ranges from colorless and transparent to softly translucent. Large natural cleavage planes intersect throughout the interior, producing layered geometric reflections and window-like areas that allow light to travel deep into the specimen. Fine growth lines, internal veils, and smaller cleavage features add visual complexity without obscuring its overall optical character.\u003c\/p\u003e\n\u003cp data-start=\"901\" data-end=\"1206\"\u003eSeveral internal separations act as natural reflective surfaces, producing flashes of green, yellow, blue, violet, and other spectral colors as the specimen or light source is moved. These rainbows appear at different depths and angles, giving the crystal a constantly changing appearance during rotation.\u003c\/p\u003e\n\u003cp data-start=\"1208\" data-end=\"1666\"\u003eUnder ultraviolet illumination, the entire specimen develops a soft yet clearly visible pink-to-lavender fluorescent glow. The UV response reveals internal zoning and cleavage architecture that are less noticeable under ordinary lighting, while selected edges and internal features produce brighter blue-white highlights. Fluorescent color and intensity may vary according to the wavelength and strength of the UV lamp, ambient lighting, and camera settings.\u003c\/p\u003e\n\u003cp data-start=\"1668\" data-end=\"1905\"\u003eOptical calcite is also known for pronounced birefringence, or double refraction. When viewed through sufficiently clear areas, text, lines, and other objects may appear doubled because the mineral separates incoming light into two rays.\u003c\/p\u003e\n\u003cp data-start=\"1907\" data-end=\"2186\"\u003eMeasuring approximately 3 × 2 × 3.5 inches and weighing 0.67 pounds, this is a substantial mounted calcite display. Its combination of clarity, geometric structure, internal rainbows, fluorescent response, and elevated presentation gives it both collector and educational appeal.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1a3ueyz\" data-start=\"2188\" data-end=\"2205\"\u003eSpecifications\u003c\/h2\u003e\n\u003cp data-start=\"2207\" data-end=\"2223\"\u003eMineral: Calcite\u003c\/p\u003e\n\u003cp data-start=\"2225\" data-end=\"2293\"\u003eVariety\/Trade Description: UV-Reactive Optical Calcite with Rainbows\u003c\/p\u003e\n\u003cp data-start=\"2295\" data-end=\"2323\"\u003eLocality: Maharashtra, India\u003c\/p\u003e\n\u003cp data-start=\"2325\" data-end=\"2367\"\u003eWeight: 0.67 lbs (approximately 304 grams)\u003c\/p\u003e\n\u003cp data-start=\"2369\" data-end=\"2413\"\u003eDimensions: Approximately 3 × 2 × 3.5 inches\u003c\/p\u003e\n\u003cp data-start=\"2415\" data-end=\"2492\"\u003eColor Under White Light: Colorless, transparent white, and softly translucent\u003c\/p\u003e\n\u003cp data-start=\"2494\" data-end=\"2585\"\u003eFluorescence: Pink-to-lavender overall response with brighter blue-to-blue-white highlights\u003c\/p\u003e\n\u003cp data-start=\"2587\" data-end=\"2733\"\u003eUV Disclosure: Fluorescent color and intensity may vary according to UV wavelength, lamp strength, ambient lighting, exposure, and camera settings\u003c\/p\u003e\n\u003cp data-start=\"2735\" data-end=\"2813\"\u003eForm: Large natural calcite cleavage specimen with broad optical viewing faces\u003c\/p\u003e\n\u003cp data-start=\"2815\" data-end=\"2950\"\u003eInternal Features: Intersecting cleavage planes, geometric reflections, internal veils, growth lines, and rainbow-producing separations\u003c\/p\u003e\n\u003cp data-start=\"2952\" data-end=\"3076\"\u003eRainbow Effect: Multicolored spectral flashes created by light interacting with thin internal cleavage and fracture surfaces\u003c\/p\u003e\n\u003cp data-start=\"3078\" data-end=\"3169\"\u003eOptical Property: Birefringence or double refraction through sufficiently transparent areas\u003c\/p\u003e\n\u003cp data-start=\"3171\" data-end=\"3201\"\u003eLuster: Vitreous to glass-like\u003c\/p\u003e\n\u003cp data-start=\"3203\" data-end=\"3243\"\u003eTransparency: Transparent to translucent\u003c\/p\u003e\n\u003cp data-start=\"3245\" data-end=\"3269\"\u003eCrystal System: Trigonal\u003c\/p\u003e\n\u003cp data-start=\"3271\" data-end=\"3294\"\u003eChemical Formula: CaCO₃\u003c\/p\u003e\n\u003cp data-start=\"3296\" data-end=\"3326\"\u003eMohs Hardness: Approximately 3\u003c\/p\u003e\n\u003cp data-start=\"3328\" data-end=\"3387\"\u003eCleavage: Perfect rhombohedral cleavage in three directions\u003c\/p\u003e\n\u003cp data-start=\"3389\" data-end=\"3449\"\u003eMounting: Affixed to a custom display base produced in-house\u003c\/p\u003e\n\u003cp data-start=\"3451\" data-end=\"3495\"\u003eDisplay: Elevated upright collector specimen\u003c\/p\u003e\n\u003cp data-start=\"3497\" data-end=\"3637\"\u003eCondition: Natural calcite with inherent cleavage lines, internal fractures, inclusions, contacts, surface textures, and edge irregularities\u003c\/p\u003e\n\u003cp data-start=\"3639\" data-end=\"3659\"\u003eExact specimen shown\u003c\/p\u003e\n\u003ch2 data-section-id=\"g70bqp\" data-start=\"3661\" data-end=\"3685\"\u003eAbout Optical Calcite\u003c\/h2\u003e\n\u003cp data-start=\"3687\" data-end=\"3974\"\u003eCalcite is a calcium carbonate mineral known for its enormous variety of forms and its perfect rhombohedral cleavage. It separates along three consistent directions that do not meet at right angles, creating the slanted and intersecting geometric planes visible throughout this specimen.\u003c\/p\u003e\n\u003cp data-start=\"3976\" data-end=\"4282\"\u003eExceptionally transparent calcite is commonly called optical calcite because of its strong birefringence. When light enters the mineral, it separates into two rays traveling through the crystal differently. This can create two visible images when a clear section is placed over printed text or a fine line.\u003c\/p\u003e\n\u003cp data-start=\"4284\" data-end=\"4559\"\u003eThe internal rainbows are produced by a separate optical phenomenon. Thin natural cleavage separations and internal fractures interfere with and divide white light into spectral colors. Their position and intensity change with the viewing angle and direction of illumination.\u003c\/p\u003e\n\u003cp data-start=\"4561\" data-end=\"4904\"\u003eFluorescence occurs when a mineral absorbs ultraviolet energy and releases part of it as visible light. Trace elements, structural defects, inclusions, and different generations of calcite growth can influence the color and strength of the response. The specific fluorescent activator within this specimen has not been analytically determined.\u003c\/p\u003e\n\u003cp data-start=\"4906\" data-end=\"5192\"\u003eCalcite is considerably softer than quartz and possesses perfect cleavage. It should be kept away from acids, harsh chemicals, prolonged soaking, and sudden temperature changes. Handle the specimen by its display base and clean it only with a soft, dry brush or gentle microfiber cloth.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1punl39\" data-start=\"5194\" data-end=\"5212\"\u003eCollector Notes\u003c\/h2\u003e\n\u003cp data-start=\"5214\" data-end=\"5237\"\u003eThis specimen features:\u003c\/p\u003e\n\u003cul data-start=\"5239\" data-end=\"6064\"\u003e\n\u003cli data-section-id=\"vpzkv\" data-start=\"5239\" data-end=\"5279\"\u003eSubstantial 0.67-pound optical calcite\u003c\/li\u003e\n\u003cli data-section-id=\"19jwa7d\" data-start=\"5280\" data-end=\"5322\"\u003eNatural material from Maharashtra, India\u003c\/li\u003e\n\u003cli data-section-id=\"1uyfzcf\" data-start=\"5323\" data-end=\"5371\"\u003eBroad transparent-to-translucent viewing faces\u003c\/li\u003e\n\u003cli data-section-id=\"u8dhs6\" data-start=\"5372\" data-end=\"5416\"\u003ePronounced internal geometric architecture\u003c\/li\u003e\n\u003cli data-section-id=\"1fmptaf\" data-start=\"5417\" data-end=\"5455\"\u003eIntersecting natural cleavage planes\u003c\/li\u003e\n\u003cli data-section-id=\"1y3ydev\" data-start=\"5456\" data-end=\"5491\"\u003eWindow-like optical viewing areas\u003c\/li\u003e\n\u003cli data-section-id=\"oqco3w\" data-start=\"5492\" data-end=\"5539\"\u003eStrong internal depth and layered reflections\u003c\/li\u003e\n\u003cli data-section-id=\"11sovoo\" data-start=\"5540\" data-end=\"5579\"\u003eMultiple concentrated rainbow flashes\u003c\/li\u003e\n\u003cli data-section-id=\"1nlk2dc\" data-start=\"5580\" data-end=\"5648\"\u003eGreen, yellow, blue, violet, and multicolored spectral reflections\u003c\/li\u003e\n\u003cli data-section-id=\"12nrial\" data-start=\"5649\" data-end=\"5687\"\u003eNatural double-refraction properties\u003c\/li\u003e\n\u003cli data-section-id=\"11tgnjp\" data-start=\"5688\" data-end=\"5722\"\u003ePink-to-lavender UV fluorescence\u003c\/li\u003e\n\u003cli data-section-id=\"p9hco2\" data-start=\"5723\" data-end=\"5767\"\u003eBrighter blue-white fluorescent highlights\u003c\/li\u003e\n\u003cli data-section-id=\"10m3an3\" data-start=\"5768\" data-end=\"5817\"\u003eVisible internal zoning under ultraviolet light\u003c\/li\u003e\n\u003cli data-section-id=\"10ojem9\" data-start=\"5818\" data-end=\"5873\"\u003eDramatically different white-light and UV appearances\u003c\/li\u003e\n\u003cli data-section-id=\"1obdbtw\" data-start=\"5874\" data-end=\"5913\"\u003eCustom display base produced in-house\u003c\/li\u003e\n\u003cli data-section-id=\"1h0plg5\" data-start=\"5914\" data-end=\"5945\"\u003eElevated upright presentation\u003c\/li\u003e\n\u003cli data-section-id=\"1xkzmle\" data-start=\"5946\" data-end=\"5997\"\u003eDecorative, mineralogical, and educational appeal\u003c\/li\u003e\n\u003cli data-section-id=\"xjwr3e\" data-start=\"5998\" data-end=\"6038\"\u003eOne-of-a-kind natural mineral specimen\u003c\/li\u003e\n\u003cli data-section-id=\"1bmwm75\" data-start=\"6039\" data-end=\"6064\"\u003eExact specimen pictured\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"6066\" data-end=\"6285\"\u003ePerfect for collectors of optical calcite, fluorescent calcite, rainbow minerals, transparent minerals, birefringent crystals, UV-reactive minerals, Indian minerals, Maharashtra specimens, and natural optical phenomena.\u003c\/p\u003e\n\u003cp data-start=\"6287\" data-end=\"6337\"\u003eProfessionally packaged and shipped from Colorado.\u003c\/p\u003e\n\u003cp data-start=\"6339\" data-end=\"6381\"\u003eYou will receive the exact specimen shown.\u003c\/p\u003e\n\u003cp data-start=\"6383\" data-end=\"6518\"\u003eEvery order is backed by our commitment to quality and customer satisfaction. Thank you for supporting our family-owned small business.\u003c\/p\u003e","brand":"Serenity Soul Stones","offers":[{"title":"Default Title","offer_id":49749759820026,"sku":null,"price":34.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/2328\/8826\/files\/UV-ReactiveOpticalCalcitewithRainbows_Maharashtra_India_0.67lbs_4.jpg?v=1784920489"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/2328\/8826\/collections\/ChatGPT_Image_Jul_13_2026_12_25_33_PM.png?v=1783967178","url":"https:\/\/serenitysoulstones.com\/collections\/calcite-crystal-mineral-specimens.oembed?page=2","provider":"Serenity Soul Stones","version":"1.0","type":"link"}