{"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","url":"https:\/\/serenitysoulstones.com\/products\/optical-calcite-1-02-lbs","provider":"Serenity Soul Stones","version":"1.0","type":"link"}