Dioptase on Calcite

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia

4.3 x 1.6 x 3.3 cm

Tsumeb Dioptase are likely best of species due to their internal reflectivity and gaminess. This specimen features two individual Dioptase crystals, neatly separated and balanced on a contrasting matrix coating of microcrystalline Calcite. The larger of the two XLS measures approx 1.8 cm. Ex. George Witter. Photo by Laszlo Kupi