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dioptase

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  • Dioptase is an intense emerald-green to bluish-green copper cyclosilicate mineral. Dioptase is popular with mineral collectors and it is occasionally cut into small emerald-like gems. Dioptase and chrysocolla are the only relatively common copper silicate minerals. A dioptase gemstone should. — “Dioptase - Wikipedia, the free encyclopedia”, en.wikipedia.org
  • Dioptase. Draconite. Emerald. Enhydros. Enstatite. Epidote. Euclase. Flint. Garnet. Hematite Dioptase. Draconite. Emerald. Enhydros. Enstatite. Epidote. Euclase. Flint. Garnet. Hematite. — “User:Corvus13 - Wikipedia, the free encyclopedia”, en.wikipedia.org
  • Gem-quality dioptase crystals from the Tsumeb mine, source of many of the world's best (and most expensive) dioptase specimens. Dioptase crystals on calcite, a classic Tsumeb specimen. Size: 8.2 x. — “Tsumeb - Wikipedia, the free encyclopedia”, en.wikipedia.org

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