Smithsonite on Matrix - TS 031

Measurements:  110 x 47 x 30 mm

Description:  Smithsonite crystals sit on a thin layer of calcite (or perhaps mimetite?) crystals, on a dolomite matrix.

The specimen has very little damage, only a few contact marks.

Weight of Specimen:  158 g

Chemical Composition:  ZnCO₃ (smithsonite basic formula)   
                                       CaCO₃ (calcite) 
                                        CaMg(CO₃)₂ (dolomite)

Hardness on Mohs Scale:   (smithsonite) 4 - 5   
                                          (calcite) 3
                                                   (dolomite) 3.5 - 4     

Location:  Tsumeb, Northern Namibia.

Specimen Code:  TS 031

R SOLD