Calcite and Duftite - NTS 032

Duftite on a group of calcite crystals

Measurements:  68 x 52 x 34 mm

Description:  A group of calcite crystals, some with minute crystal growth on them (possibly calcite) with bits of duftite.

The specimen has a few nicks.

Weight of Specimen:  94.0 g

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

Hardness on Mohs Scale:  (calcite) 
)  4.5

Tsumeb, Northern Namibia.

Specimen Code:  NTS 032

US $ 45


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