Name: Dioptase Calcite.
Location: Tsumeb Mine Oshikoto region Namibia.
Size: 170 x 100 x 60 mm.
Weight: 1086 gm.
Comment: A well crystallized plate of calcite deftly sprinkled by tiny crystals of the rare mineral Dioptase. Specimens of a large sizes of this mineral are very difficult to obtain. This piece looks like sky blue calcite and makes a very attractive specimen.