{"product_id":"natural-large-dioptase-specimen-with-feldspar-x-1-from-kaokoveld-namibia","title":"Natural Large Dioptase Specimen with Feldspar x 1 From Kaokoveld Namibia","description":"\u003cp\u003e\u003cb\u003eA NOTE FROM NICK \u003cbr\u003e\u003c\/b\u003eA large 78 x 126 x 165 mm sized natural Dioptase with Feldspar is a fairly rare and extremely beautiful Bright Emerald Green Copper Mineral formed from the action of the Cu content in the mineralised water in hydrothermal activities in the dolomite faults from the mantle It is a secondary copper silicate found \u003cspan\u003ein the oxidized zones of copper deposits, often in arid, desert environments. As the hydrothermal waters deposits and erodes other Cu ores, it oxidises and crystallises onto other copper depositations, minerals and often calcite and dolomite where the copper enriched liquids have soaked in. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePRODUCT DESCRIPTION \u003cbr\u003e\u003c\/b\u003e\u003cb\u003e\u003cstrong\u003eNamibian Dioptase – Premium Emerald Green Copper Cyclone\u003c\/strong\u003e \u003cbr\u003e\u003c\/b\u003eNamibian Dioptase is world renowned for its intense, vivid emerald to teal green color and translucency. It comes from a few Copper Mines Worldwide, but is not common in good crystals and formations. On our side in Namibia, it was mined from Tsumeb, Kaokoveld (Kunene Region), and smaller occurrences around Omaruru and Guchab and we have it at Toprock Farm near Kombat. It often forms drusy crystallisation, and occasionally sharp, highly lustrous rhombohedral crystals, often 5–25 mm, displaying glassy vitreous luster and strong dispersion that rivals emerald and is highly sought after by collectors worldwide.  Typical matrix is dolomite or quartz. Common inclusions and associations include: bladed malachite pseudomorphs after dioptase, shimmering chrysocolla coatings or drusy overgrowths, scattered azurite crystals, blue-green shattuckite, cerussite, duftite, mottramite, wulfenite, mimetite, and occasional calcite crystal inclusions or coatings. Specimens range from isolated gemmy singles to dramatic cavity clusters with explosive, multi-directional crystal sprays that are considered the global benchmark for the species.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003c\/b\u003e\u003cb\u003ePRODUCT MINERALS \u003cbr\u003e\u003c\/b\u003eCalcite, Duftite, Malachite, Plancheite, Dolomite, Quartz\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"line-height: normal;\"\u003e\u003cb\u003ePRODUCT FEATURES \u003cbr\u003e\u003c\/b\u003eRhombohedral, Transparent\u003cb\u003e\u003c\/b\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePRODUCT COLOUR \u003cbr\u003e\u003c\/b\u003eEmerald Green\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"line-height: normal;\"\u003e\u003cb\u003eMOHS HARDNESS SCALE\u003ci\u003e\u003cbr\u003e\u003c\/i\u003e\u003c\/b\u003e3.5\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003ePRODUCT DATA \u003cbr\u003e\u003c\/b\u003eLocality = Kaokoveld, Namibia\u003cbr\u003eGrade = Good Grade\u003cspan style=\"mso-spacerun: yes;\"\u003e                      \u003c\/span\u003e\u003cbr\u003eSize = 78 x 126 x 165 mm\u003c\/p\u003e","brand":"DIOPTASE","offers":[{"title":"Default Title","offer_id":50467404415169,"sku":"187-084-260806BM","price":1876.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2066\/6451\/files\/187084_2.jpg?v=1786454642","url":"https:\/\/www.toprocks.com\/products\/natural-large-dioptase-specimen-with-feldspar-x-1-from-kaokoveld-namibia","provider":"Toprock Gemstones and Minerals ","version":"1.0","type":"link"}