7atkrts ((DIOPTASE on MOTTRAMITE)), $20 MINIMUM BID, Tsumeb, Namibia, 4.5 x 2.5 x 2 cm, Miniature | |
Here is an Tsumeb specimen with gemmy small Dioptase crystals on dark blackishe green botryoidal Mottramite. There are also clusters of acicular crystals of a lighter green mineral. Uri Bahmann collection. The lot from Kristalle back a couple of years was not labeled. |