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Native Copper & Tennantite

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MMM52007

Native Copper & Tennantite

Description Tabs

Description
Locality: 
Gwennap, Cornwall, United Kingdom
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.5 × 6.5 × 3 cm
Description

An old specimen of coarsely crystalline native copper with a partial covering of micro crystalline tennantite.

No mine location given other than Gwennap but with the tennantite association it is most likely from the Wheal jewell Mine, Gwennap.

Comes with an old Lythe minerals label.

Mineral Data
What's on the rock

Copper

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

Tennantite

Formula: 
Cu6[Cu4(Fe,Zn)2]As4S13
Strunz: 
2.GB.05
Crystal System: 
Isometric
Hardness: 
3.0 - 4.5
Type Locality: 
Cornwall, England, UK
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