Measurements: 26 x 11 x 11 mm
Description: Small dioptase and calcite crystals on a rock matrix.
The only notable damage is to some of the edges of the specimen.
Weight of Specimen: 3.1 g
Chemical Composition: Cu2+SiO2(OH)2 (dioptase) CaCO3 (calcite)
Hardness on Mohs
Location: Tsumeb, Northern Namibia.
Specimen Code: NTS 003
US $ 18.