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Chalcocite

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WND828932

Chalcocite

Classic Locality

Description Tabs

Description
Locality: 
Dzhezkazgan, Karaganda Oblast, Kazakhstan
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.1 × 4.9 × 3.2 cm
Description

Lustrous, dark gray crystals of Chalcocite, to 1.7 cm across, are aesthetically perched on a Quartz and Calcite matrix. This is a choice small cabinet by any standards and features six-sided crystals with a slightly stepped pattern on its surface. The patina is great and the overall aesthetics superb. I have seen numerous of Chalcocites from that locale but most of them featured not this kind of well defined crystals, especially so contrastful with the white-gray matrix.

Mineral Data
What's on the rock

Chalcocite

Formula: 
Cu2S
Strunz: 
2.BA.05
Crystal System: 
Monoclinic
Hardness: 
2.5 - 3.0
Wendel Minerals

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