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Paracoquimbite Halotrichite

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SMM781803

Paracoquimbite Halotrichite

Description Tabs

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

Pale cyclamen small masses of paracoquimbite hexagonal crystals and white silky long tufts of halotrichite, few tabulars golden-yellow metavoltine.  A good specimen.

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

Halotrichite

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

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