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Chalcocite & Malachite

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NST634055

Chalcocite & Malachite

With Antique Label

Description Tabs

Description
Locality: 
Bogoslovsk, Tur'insk-Auerbakovsk, Sverdlovsk Oblast, Russian Federation
Class: 
Massive/Crystalline
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 4.5 × 2.5 cm
Description

Historic example of massive chalcocite with malachite and white calcite. Comes with an onglued 19th century label.

Mineral Data
What's on the rock

Chalcocite

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

Malachite

Formula: 
Cu2(CO3)(OH)2
Strunz: 
5.BA.10
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0