{"product_id":"calcite-on-quartz-4","title":"CALCITE   on QUARTZ","description":"This small cabinet specimen presents quite an unusual contrast between a bed of parallel white Quartz crystals and orange Calcite. It is from the famous Cavnic mine in Romania which is well-known for intriguing and unusual forms of Calcite and other carbonates, including Rhodochrosite. There is the strong possibility that the orange crystals here are Siderite, or at least iron-rich, but the main aggregate appears to have the overall form of a cluster of scalenohedral Calcite crystals upon which the smaller, orange, iron-rich carbonate crystals have deposited. A quite distinctive piece from this important historic mining area. ","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":57781263991119,"sku":"CC37212","price":89.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/3748\/2063\/files\/CC37212_02586f5d-8102-4199-ba66-c918ab5dd9e6.jpg?v=1783984568","url":"https:\/\/crystalclassics.co.uk\/products\/calcite-on-quartz-4","provider":"Crystal Classics UK","version":"1.0","type":"link"}