Smithsonite and Mottramite on Matrix - TS 010

Measurements:  140 x 90 x 60 mm

Description:  Smithsonite crystals and mottramite sit on a conglomorate matrix.

The specimen has a few contact marks.

Weight of Specimen:  744 g

Chemical Composition:  ZnCO₃ (smithsonite basic formula)
                                        PbCu(VO₄)(OH) (mottramite)    

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

Location:  Tsumeb, Northern Namibia.

Specimen Code:  TS 010