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Kyanite & Staurolite

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CLB520871

Kyanite & Staurolite

Classic Locality

Description Tabs

Description
Locality: 
Sponda Alp-Pizzo Forno, Chironico Valley, Leventina, Ticino, Switzerland
Class: 
Combination
Size Range: 
Museum (18cm plus)
Size: 
20.6 × 12.6 × 4 cm
Largest Crystal: 
6.70cm
Weight: 
915.00gr
Description

Very rich and beautiful, large specimen, full of pale blue kyanite crystals up to 6.7 cm.  Here and there some smaller, dark brown staurolite crystals.

Mineral Data
What's on the rock

Kyanite

Formula: 
Al2(SiO4)O
Strunz: 
9.AF.15
Crystal System: 
Triclinic Forms long bladed crystals.
Hardness: 
5.5 - 7.0
Streak: 
Colorless

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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