{"product_id":"natural-back-cornucopia-amethyst-geode-minas-gerais-brazil-65-lbs","title":"Natural-Back Cornucopia Amethyst Geode – Minas Gerais, Brazil – 65 lbs","description":"\u003cp data-start=\"2537\" data-end=\"2895\" class=\"PDq2pG_selectionAnchorContainer\"\u003eA monumental Natural-Back Cornucopia Amethyst Geode from Minas Gerais, Brazil, weighing approximately 65 pounds and featuring a large, deeply crystallized interior chamber. Its unusual freestanding silhouette rises into a naturally pointed upper termination, giving the formation the appearance of a mineral cornucopia, crystal cave, or sculptural cathedral.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2897\" data-end=\"3301\"\u003eThe open display face reveals hundreds of quartz and amethyst crystals extending throughout the chamber. Pale lavender coloration is concentrated around the inner walls and deeper recesses, where closely intergrown crystal points create considerable depth and sparkle. Larger crystals project inward from the sides and lower ledge, while densely crystallized surfaces continue into the shadowed interior.\u003c\/p\u003e\n\u003cp data-start=\"3303\" data-end=\"3663\"\u003eA substantial border of colorless-to-milky quartz surrounds the amethyst chamber. This thick quartz frame transitions gradually into lavender crystal growth, documenting multiple stages of silica crystallization within the original volcanic cavity. Under direct lighting, the many reflective crystal faces produce bright flashes and subtle rainbow reflections.\u003c\/p\u003e\n\u003cp data-start=\"3665\" data-end=\"4098\"\u003eThe exterior retains its natural dark volcanic back rather than being covered or reconstructed. Areas of earthy brown, charcoal black, and naturally occurring green mineral staining remain visible across the reverse and sides, preserving the geological character of the original host rock. The contrast between the rugged natural exterior and brilliant crystallized interior gives the specimen two dramatically different appearances.\u003c\/p\u003e\n\u003cp data-start=\"4100\" data-end=\"4466\"\u003eMeasuring approximately 14 × 16 × 13.5 inches and weighing 65 pounds, this is a genuine statement-sized mineral display. Its substantial mass, broad crystal chamber, unusual pointed silhouette, natural exterior, and freestanding presentation make it ideally suited for a serious mineral collection, luxury interior, office, gallery, showroom, or hospitality display.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1a3ueyz\" data-start=\"4468\" data-end=\"4485\"\u003eSpecifications\u003c\/h2\u003e\n\u003cp data-start=\"4487\" data-end=\"4511\"\u003eMineral: Amethyst Quartz\u003c\/p\u003e\n\u003cp data-start=\"4513\" data-end=\"4603\"\u003eFormation: Large open geode with a cornucopia-shaped profile and pointed upper termination\u003c\/p\u003e\n\u003cp data-start=\"4605\" data-end=\"4635\"\u003eLocality: Minas Gerais, Brazil\u003c\/p\u003e\n\u003cp data-start=\"4637\" data-end=\"4675\"\u003eWeight: Approximately 65 lbs (29.5 kg)\u003c\/p\u003e\n\u003cp data-start=\"4677\" data-end=\"4724\"\u003eDimensions: Approximately 14 × 16 × 13.5 inches\u003c\/p\u003e\n\u003cp data-start=\"4726\" data-end=\"4807\"\u003eColor: Colorless and milky white quartz transitioning into pale lavender amethyst\u003c\/p\u003e\n\u003cp data-start=\"4809\" data-end=\"4894\"\u003eCrystal Habit: Densely intergrown prismatic quartz crystals with pointed terminations\u003c\/p\u003e\n\u003cp data-start=\"4896\" data-end=\"4926\"\u003eLuster: Vitreous to glass-like\u003c\/p\u003e\n\u003cp data-start=\"4928\" data-end=\"5007\"\u003eTransparency: Transparent to translucent crystal points with milky quartz areas\u003c\/p\u003e\n\u003cp data-start=\"5009\" data-end=\"5033\"\u003eCrystal System: Trigonal\u003c\/p\u003e\n\u003cp data-start=\"5035\" data-end=\"5061\"\u003eChemical Composition: SiO₂\u003c\/p\u003e\n\u003cp data-start=\"5063\" data-end=\"5143\"\u003eExterior: Natural dark volcanic host rock with earthy and green mineral staining\u003c\/p\u003e\n\u003cp data-start=\"5145\" data-end=\"5205\"\u003eFace: Cut and finished to expose the natural crystal chamber\u003c\/p\u003e\n\u003cp data-start=\"5207\" data-end=\"5248\"\u003eBack: Natural and substantially unaltered\u003c\/p\u003e\n\u003cp data-start=\"5250\" data-end=\"5300\"\u003eDisplay: Naturally freestanding statement specimen\u003c\/p\u003e\n\u003cp data-start=\"5302\" data-end=\"5493\"\u003eCondition: Natural mineral specimen with inherent contacts, crystal irregularities, inclusions, internal fractures, mineral staining, and variations associated with extraction and preparation\u003c\/p\u003e\n\u003cp data-start=\"5495\" data-end=\"5515\"\u003eExact specimen shown\u003c\/p\u003e\n\u003ch2 data-section-id=\"1y2eac4\" data-start=\"5517\" data-end=\"5551\"\u003eAbout Brazilian Amethyst Geodes\u003c\/h2\u003e\n\u003cp data-start=\"5553\" data-end=\"5826\"\u003eAmethyst is the purple variety of quartz. Its coloration develops when trace iron incorporated into the quartz structure is affected by natural geological irradiation. Color can range from extremely pale lilac to deep violet and may vary considerably within a single geode.\u003c\/p\u003e\n\u003cp data-start=\"5828\" data-end=\"6135\"\u003eBrazilian amethyst geodes formed inside cavities in ancient volcanic rock. Silica-rich fluids entered these openings and gradually deposited layers of chalcedony, quartz, and amethyst. Repeated mineralization produced the thick white quartz border and inward-facing crystal chamber visible in this specimen.\u003c\/p\u003e\n\u003cp data-start=\"6137\" data-end=\"6358\"\u003eThe dark natural exterior represents the original volcanic host material surrounding the cavity. Its preservation helps illustrate the dramatic difference between the geode’s rugged exterior and its crystallized interior.\u003c\/p\u003e\n\u003cp data-start=\"6360\" data-end=\"6549\"\u003eMinas Gerais is among Brazil’s best-known mineral-producing regions and has supplied the collector market with amethyst, quartz, tourmaline, topaz, and many other important mineral species.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1punl39\" data-start=\"6551\" data-end=\"6569\"\u003eCollector Notes\u003c\/h2\u003e\n\u003cp data-start=\"6571\" data-end=\"6594\"\u003eThis specimen features:\u003c\/p\u003e\n\u003cul data-start=\"6596\" data-end=\"7361\"\u003e\n\u003cli data-section-id=\"nyuabk\" data-start=\"6596\" data-end=\"6632\"\u003eMonumental 65-pound statement size\u003c\/li\u003e\n\u003cli data-section-id=\"t1jltk\" data-start=\"6633\" data-end=\"6674\"\u003eNatural amethyst and quartz from Brazil\u003c\/li\u003e\n\u003cli data-section-id=\"1oxongb\" data-start=\"6675\" data-end=\"6722\"\u003eUnusual cornucopia or crystal-cave silhouette\u003c\/li\u003e\n\u003cli data-section-id=\"c296on\" data-start=\"6723\" data-end=\"6760\"\u003eNaturally pointed upper termination\u003c\/li\u003e\n\u003cli data-section-id=\"nggyfs\" data-start=\"6761\" data-end=\"6801\"\u003eLarge, deeply recessed crystal chamber\u003c\/li\u003e\n\u003cli data-section-id=\"11zh27y\" data-start=\"6802\" data-end=\"6850\"\u003eHundreds of visible quartz and amethyst points\u003c\/li\u003e\n\u003cli data-section-id=\"1vyu4ft\" data-start=\"6851\" data-end=\"6910\"\u003ePale lavender coloration concentrated toward the interior\u003c\/li\u003e\n\u003cli data-section-id=\"1bgblz8\" data-start=\"6911\" data-end=\"6958\"\u003eSubstantial milky and colorless quartz border\u003c\/li\u003e\n\u003cli data-section-id=\"bwnvih\" data-start=\"6959\" data-end=\"7014\"\u003eLarger projecting crystals among dense smaller growth\u003c\/li\u003e\n\u003cli data-section-id=\"1q4v0oz\" data-start=\"7015\" data-end=\"7069\"\u003eBright vitreous sparkle and reflective crystal faces\u003c\/li\u003e\n\u003cli data-section-id=\"8yc08s\" data-start=\"7070\" data-end=\"7102\"\u003eNatural dark volcanic exterior\u003c\/li\u003e\n\u003cli data-section-id=\"1xfyb3i\" data-start=\"7103\" data-end=\"7148\"\u003ePreserved earthy and green mineral staining\u003c\/li\u003e\n\u003cli data-section-id=\"ni9mh4\" data-start=\"7149\" data-end=\"7208\"\u003eStrong contrast between rugged back and crystallized face\u003c\/li\u003e\n\u003cli data-section-id=\"k5poea\" data-start=\"7209\" data-end=\"7246\"\u003eNaturally freestanding presentation\u003c\/li\u003e\n\u003cli data-section-id=\"1og8hos\" data-start=\"7247\" data-end=\"7301\"\u003eExcellent architectural and interior-design presence\u003c\/li\u003e\n\u003cli data-section-id=\"1l9fye3\" data-start=\"7302\" data-end=\"7335\"\u003eOne-of-a-kind natural formation\u003c\/li\u003e\n\u003cli data-section-id=\"1bmwm75\" data-start=\"7336\" data-end=\"7361\"\u003eExact specimen pictured\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"7363\" data-end=\"7604\"\u003ePerfect for collectors of Brazilian amethyst, large geodes, natural-back specimens, amethyst cathedrals, statement minerals, quartz caves, geological décor, gallery minerals, luxury office displays, and substantial natural-history specimens.\u003c\/p\u003e\n\u003cp data-start=\"7606\" data-end=\"7764\"\u003eDue to its exceptional size and weight, this specimen requires special handling and protective packaging. Please verify delivery arrangements before purchase.\u003c\/p\u003e\n\u003cp data-start=\"7766\" data-end=\"7816\"\u003eProfessionally packaged and shipped from Colorado.\u003c\/p\u003e\n\u003cp data-start=\"7818\" data-end=\"7860\"\u003eYou will receive the exact specimen shown.\u003c\/p\u003e\n\u003cp data-start=\"7862\" data-end=\"7997\"\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":49745654251770,"sku":null,"price":1095.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/2328\/8826\/files\/Natural-BackCornucopiaAmethystGeode_MinasGerais_Brazil_65lbs_6.jpg?v=1784840156","url":"https:\/\/serenitysoulstones.com\/products\/natural-back-cornucopia-amethyst-geode-minas-gerais-brazil-65-lbs","provider":"Serenity Soul Stones","version":"1.0","type":"link"}