{"product_id":"4-06-sparkling-cave-calcite-aragonite-specimen-potosi-mine-mexico-703-copy","title":"4.79\" Sparkling Cave Calcite (Aragonite) Specimen - Potosi Mine, Mexico (#706)","description":"\u003cp\u003eThis is an absolutely stunning 4.79\" long cluster of sparkling aragonite crystals\u003cspan\u003e from the famous Potosi Mine in the Santa Eulalia Mining District of Chihuahua, Mexico.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAlthough it is often referred to as \"cave calcite\" it is actually a formation of aragonite crystals. Calcite and aragonite are both carbonates with the same chemical formula (CaCO3), but they have different crystal structures and symmetries.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCave calcite forms underground due to groundwater deposition. While it often forms stalactites and stalagmites it can also form unique, branching, tree-like structures known as \u003cspan class=\"Yjhzub\"\u003efloss ferri\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e (flowers of iron) or \u003cspan class=\"Yjhzub\"\u003efrostwork.\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Yjhzub\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Fossils for Sale at BuriedHistoryStore.com","offers":[{"title":"Default Title","offer_id":54292997243164,"sku":"ID_706","price":51.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0930\/0960\/8988\/files\/1000022199_1.jpg?v=1783718934","url":"https:\/\/buriedhistorystore.com\/products\/4-06-sparkling-cave-calcite-aragonite-specimen-potosi-mine-mexico-703-copy","provider":"Fossils for Sale at BuriedHistoryStore.com","version":"1.0","type":"link"}