Calcite with Inclusions - NTS 040

Calcite crystals with inclusions unknown to us

Measurements:  94 x 72 x 33 mm

What appears to be calcite, has prolific 'gardens' of (unknown to us) mineral inclusions, giving the calcite a dark brownish colour. The specimen has bits of (?)duftite and the matrix is rock of a composition unknown to us.

The calcite has only a few very small to minute nicks.

Weight of Specimen: 
204 g

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

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

Location:  Tsumeb, Northern Namibia.

Specimen Code:   NTS 040

US $ 75

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