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Bornite & Chalcocite

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RBM519221

Bornite & Chalcocite

Description Tabs

Description
Locality: 
Cobriza Mine, Chinchado-Sacramento, Pabellón, Copiapó Province, Atacama Region, Chile
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.6 × 5 × 2 cm
Description

Hundreds of micro crystals of bornite accompanied by millimeters crystals of hexagonal chalcocite and semi translucent calcite on andesite matrix. Noted for the perfect and iridescent crystals of chalcocite.

Mineral Data
What's on the rock

Bornite

Formula: 
Cu5FeS4
Strunz: 
2.BA.15
Crystal System: 
Tetragonal
Hardness: 
3.0
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

Chalcocite

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

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