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Staurolite

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MEX170144

Staurolite

ex Freiberg mineral show 2014
Classic Locality

Description Tabs

Description
Locality: 
Lovozero Massif, Murmansk Oblast, Russian Federation
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.4 × 5 × 2 cm
Largest Crystal: 
4.50cm
Description

Large, dark brown crystals, partly with cruciform twins on matrix.

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