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Stannite & Chalcopyrite

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MMM85606

Stannite & Chalcopyrite

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Description
Locality: 
Mulberry Mine, Lanivet, Cornwall, United Kingdom
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 4 × 3 cm
Description

Quartz matrix rich in stannite & chalcopyrite collected in the North section of the open work.

Mineral Data
What's on the rock

Stannite

Formula: 
Cu2(Fe,Zn)SnS4
Strunz: 
2.CB.15a
Crystal System: 
Tetragonal
Hardness: 
4.0
Streak: 
Black
Type Locality: 
West Wheal Kitty (Wheal Rock), West Wheal Kitty group, St Agnes, St Agnes District, Cornwall, England, UK

Chalcopyrite

Formula: 
CuFeS2
Strunz: 
2.CB.10a
Crystal System: 
Tetragonal
Hardness: 
3.5 - 4.0
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