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Chalcocite

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CR586689

Chalcocite

with green Richard Barstow label
Classic Locality

Description Tabs

Description
Locality: 
Levant Mine, Pendeen, Cornwall, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.2 × 3.6 × 2.2 cm
Description

Very sharp and high lustrous chalcocite crystals on matrix from an old find.

With green Richard Barstow label

Mineral Data
What's on the rock

Chalcocite

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