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Chalcocite

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Chalcocite

Description Tabs

Description
Locality: 
Bristol Copper Mine, Bristol, Hartford County, Connecticut, United States of America
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2.3 × 1.7 cm
Description

A beautiful small cluster with chalcocite on quartz and calcite.

Mineral Data
What's on the rock

Chalcocite

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