Dioptase

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Dioptase CuSiO2(OH)2 I, Tsumeb Mine, Otjikoto Region, Namibia

Dioptase CuSiO2(OH)2 II, Tsumeb Mine, Otjikoto Region, Namibia

Dioptase CuSiO2(OH)2 Kaokoveld Plateau, Kunene Region, Namibia

Dioptase CuSiO2(OH)2 Tsumeb Mine, Otjikoto Region, Namibia

Dioptase CuSiO2(OH)2 Altyn-Tyube, Kirghiz Steppes, Karagandy Province, Kazakhstan, Ex Chris and Agatha Galas