Smithsonite Crystals on Matrix - NTS 006

Cobaltoan smithsonite crystals on conglomorate matrix

Measurements:  68 x 40 x 26 mm

Description:  Pinkish-brown cobaltoan smithsonite crystals on a conglomorate matrix consisting of chalcopyrite, calcite and chalcocite. 

The smithsonite crystals have only a few minute nicks.

Weight of Specimen:  73.4 g

Chemical Composition:  ZnCO3 (smithsonite basic formula)
                                        
Hardness on Mohs Scale:  (basic smithsonite)  4 - 5

Location:  Tsumeb, Northern Namibia.

Specimen Code:  NTS 006

US $ 180
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