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Staurolite

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SHS741268

Staurolite

Description Tabs

Description
Locality: 
Finistère, Brittany, France
Class: 
Single Crystal
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 2 × 2 cm
Description

Nice staurolite twin

Mineral Data
What's on the rock

Staurolite

Formula: 
Fe2+2Al9O6(SiO4)4(O,OH)2
Strunz: 
9.AF.30
Crystal System: 
‎Monoclinic
Hardness: 
7.0 - 7.5
Colour: 
Brown