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Staurolite

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RBR120757

Staurolite

Description Tabs

Description
Locality: 
Keivy Mountains, Murmansk Oblast, Russian Federation
Size Range: 
Cabinet (10-18 cm)
Size: 
10.5 × 9.5 × 4.5 cm
Description

Large crystals - about 72 mm across - on schist matrix. No damage. Ex Dallinger Coll.

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

Seller Information

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