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Paracoquimbite Magnesiocopiapite & Halotrichite

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SMM728041

Paracoquimbite Magnesiocopiapite & Halotrichite

Description Tabs

Description
Locality: 
Argentiera Della Nurra Mine, Sassari Province, Sardinia, Italy
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 1.2 × 2 cm
Description

Pale-cyclamen small masses of paracoquimbite hexagonal crystals, pale-yellow tabular aggregates of magnesiocopiapite crystals and white, silky tufts of halotrichite. Nice sample.

Boxed with Label
Mineral Data
What's on the rock

Paracoquimbite

Formula: 
Fe2(SO4)3·9H2O
Strunz: 
7.CB.55
Hardness: 
2.5
Type Locality: 
Alcaparrosa Mine, Cerritos Bayos, Calama, El Loa Province, Antofagasta Region, Chile

Magnesiocopiapite

Formula: 
MgFe3+4(SO4)6(OH)2·20H2O
Strunz: 
7.DB.35
Hardness: 
2.5 - 3.0
Type Locality: 
Blythe, Riverside Co., California, USA

Halotrichite

Formula: 
FeAl2(SO4)4·22H2O
Strunz: 
7.CB.85
Hardness: 
1.5 - 2.0
Streak: 
White

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