Calcite with Marcasite, on Matrix - TS 026

Calcite crystals on matrix, with minute marcasite crystals

Measurements:  88 x 46 x 38 mm

Description:  A group of calcite crystals on matrix. In a cavity close to the edge of the specimen are a few minute marcasite crystals (image upper right is close-up of area in image just below it).    

The calcite crystals have nicks, but the marcasite is special.    

Weight of Specimen:  189.7 g

Chemical Composition:  CaCO3  (calcite)  
                                        FeS
2  
(marcasite)

Hardness on Mohs Scale:  (calcite 3        
                                                  
(marcasite)  6 – 6.5                        

Location:  Tsumeb, Northern Namibia.

Specimen Code:  TS 026

R 150

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