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Voltaite Copiapite & Hexahydrite

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ALB735830

Voltaite Copiapite & Hexahydrite

Description Tabs

Description
Locality: 
Zastávka, Brno, South Moravian Region, Czech Republic
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 2.1 × 1.4 cm
Description

Tiny sharp black lustrous crystals all over the matrix associated to yellow copiapite and white hexahydrite.

Mineral Data
What's on the rock

Voltaite

Formula: 
K2Fe2+5Fe3+3Al(SO4)12·18H2O
Strunz: 
7.CC.25
Hardness: 
3.0 - 3.5
Type Locality: 
Solfatara di Pozzuoli, Pozzuoli, Phlegrean Fields, Naples Province, Phlegrean Volcanic Complex, Campania, Italy

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

Hexahydrite

Formula: 
MgSO4·6H2O
Strunz: 
7.CB.25
Crystal System: 
Monoclinic
Hardness: 
2.0 - 2.5
Streak: 
White
Type Locality: 
Bonaparte River, Lillooet Mining Division, British Columbia, Canada

Seller Information

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