Calcite Crystals and Duftite, on Matrix - NTS 027

Coated calcite crystals and duftite on matrix, Tsumeb

Measurements:  63 x 48 x 41 mm

Description:
 A lovely specimen consisting of calcite crystals up to 10 mm on edge, with a coating of a (to us, unknown) brownish mineral, on and in a matrix of a (to us, unknown) mineral, along with some lovely green duftite. 

Some of the crystals have nicks.


Weight of Specimen:  107.7g

Chemical Composition:  CaCO3   (calcite
                                   PbCu(AsO4)(OH)  (duftite

Hardness on Mohs Scale:  (calcite)  3
                                      (duftite
)  4 

Location:  Tsumeb, Northern Namibia.

Specimen Code:   NTS 027

US $ 75 





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