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Daphnite & Chalcopyrite

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SHS749248

Daphnite & Chalcopyrite

Description Tabs

Description
Locality: 
Penzance, Cornwall, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.6 × 1.4 × 0.4 cm
Description

Daphnite crystals with some chalcopyrite

Mineral Data
What's on the rock

Daphnite

Variety Of: 

Chamosite

Formula: 
(Fe2+,Mg)5Al(AlSi3O10)(OH)8
Strunz: 
9.EC.55
Hardness: 
3.0
Formula: 
(Fe,Mg)5Al(Si,Al)4O10(OH)8
Hardness: 
0.0

Chalcopyrite

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