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Native Copper & Cuprite

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MMM32752

Native Copper & Cuprite

Description Tabs

Description
Locality: 
Geevor Mine, Cornwall, United Kingdom
Size Range: 
Cabinet (10-18 cm)
Size: 
8 × 10.5 × 2.5 cm
Description

A large specimen of well crystallised precipitated native copper with micro crystalline cuprite on limonite matrix.

Collected from the 12 Level 'twelve hundred feet below adit' while the mine was allowed to flood after its last working in 1991.

Mineral Data
What's on the rock

Copper

Formula: 
Cu
Strunz: 
1.AA.05
Crystal System: 
Isometric
Hardness: 
2.5 - 3.0

Cuprite

Formula: 
Cu2O
Strunz: 
4.AA.10
Crystal System: 
Isometric
Hardness: 
3.5 - 4.0