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Staurolite

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TBM723256

Staurolite

Description Tabs

Description
Locality: 
Peder Valley, Martello Valley, Laces, South Tirol, Trentino-Alto Adige, Italy
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
13.5 × 6 × 1.5 cm
Weight: 
126.00gr
Description

15 mm twin crystals immersed in an amphibolytic mica schist.

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