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Coquimbite Copiapite & Alunogen

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SCH68402

Coquimbite Copiapite & Alunogen

Description Tabs

Description
Locality: 
Javier Mine, Huac-huas, Lucanas Province, Ayacucho Department, Peru
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.7 × 4 × 3.9 cm
Description

Large crystals of purple coquimbite with patches of copiapite and richly associated with white alunogen. The larger crystal is quite remarkable, 22mm. Very nice!

Mineral Data
What's on the rock

Coquimbite

Formula: 
Fe2-xAlx(SO4)3·9H2O, x ~0.5
Strunz: 
7.CB.55
Hardness: 
2.5
Streak: 
white
Type Locality: 
Coquimbo Region, Chile

Copiapite

Formula: 
Fe2+Fe3+4(SO4)6(OH)2·20H2O
Strunz: 
7.DB.35
Hardness: 
2.5 - 3.0
Type Locality: 
Copiapó Province, Atacama Region, Chile

Alunogen

Formula: 
Al2(SO4)3·17H2O
Strunz: 
7.CB.45
Crystal System: 
Trigonal
Hardness: 
1.5 - 2.0
Streak: 
White
schani

Seller Information

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