{"product_id":"dioptase-on-calcite-3","title":"DIOPTASE on CALCITE","description":"A most unusual small cabinet specimen of well-formed colourless Calcite crystals dusted with a preferential coating of Dioptase and Calcite included with Dioptase from the Tsumeb mine in Namibia.  Individual Calcite rhombs average 1 to 1.3 cm on their longest edge and are translucent colourless to creamy white.  This plate of crystals has sat vertically in a cavity wall allowing solutions to preferentially deposit sucrosic Calcite crystals tinted turquoise by finely disseminated Dioptase.  This has been followed by a deposition of 1 to 2 mm emerald green Dioptase crystals with one Dioptase of 4 mm across present.  An interesting specimen which displays nicely when stood vertically to simulate its 'way-up' position when in-situ.","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":57781510439247,"sku":"CC8047","price":2035.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/3748\/2063\/files\/CC8047_6a6be716-0fcb-4f64-bdf0-8018d1d69aaa.jpg?v=1783992262","url":"https:\/\/crystalclassics.co.uk\/products\/dioptase-on-calcite-3","provider":"Crystal Classics UK","version":"1.0","type":"link"}