Extremely rare Tridymite Crystobalite Opal - Khorixas, Brandberg West, Namibia Found in spring 2014, this specimen is one of the finest of its kind. The striking turquoise Paraiba-color is caused by copper.- / Mineral Friends ♥
Turquoise gemstone

Extremely rare Tridymite Crystobalite Opal - Khorixas, Brandberg West, Namibia Found in spring 2014, this specimen is one of the finest of its kind. The striking turquoise Paraiba-color is caused by copper.- / Mineral Friends ♥
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