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Magnesiostaurolite

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SKY669480

Magnesiostaurolite

Rare Mineral

Description Tabs

Description
Locality: 
Case Parigi, Martiniana Po, Cuneo Province, Piedmont, Italy
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.9 × 1.8 × 0.5 cm
Description

Yellow crystal aggregates of the rare mineral magnesiostaurolite in a white contrasting matrix.

Magnesiostaurolite has been found in very few localities worldwide.

Mineral Data
What's on the rock

Magnesiostaurolite

Formula: 
(Mg,Li,Fe2+)1.5-2Al9(SiO4)4O6(OH)2
Strunz: 
9.AF.30
Crystal System: 
Monoclinic
Hardness: 
7.0 - 7.5
Type Locality: 
Gilba Valley, Brossasco, Varaita Valley, Cuneo Province, Piedmont, Italy

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