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Kyanite & Staurolite

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MEX137451

Kyanite & Staurolite

ex Hermann Höger collection
Classic Locality

Description Tabs

Description
Locality: 
Sponda Alp-Pizzo Forno, Chironico Valley, Leventina, Ticino, Switzerland
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.3 × 5.8 × 2.3 cm
Largest Crystal: 
5.10cm
Description

A very long, bicolor kyanite with staurolite crystals in paragonite matrix.

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