Dioptase, Calcite
Cabinet, 9.5 x 7.0 x 4.7 cm
Altyn-Tyube (Altyn-Tube) deposit, Kirghiz Steppes (Asiatic Steppes), Qaraghandy Oblysy (Karaganda Oblast'), Kazakhstan
This is actually the type locality for dioptase; it is not Tsumeb, as some people think! At any rate; ths specimen is not notable so much for the size of its crystals as much as for the very pretty sprinkling of the crystals over the rolling, 3-dimensional matrix of calcite. The color is a nice, bright "Tsumeb" green, and the crystals, to half a cm, have good luster! 9.5 x 7 x 4.7 cm