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Andalusite

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MGR847550

Andalusite

Classic Locality

Description Tabs

Description
Locality: 
Lüsens Valley, Tyrol, Austria
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
10.8 × 5.8 × 5.4 cm
Description

Well crystallized andalusite crystals on matrix. The specimen is covered with a sparkling orange layer of probably a secondary mineral. Good representative example for this alpine locality.

Mineral Data
What's on the rock

Andalusite

Formula: 
Al2(SiO4)O
Strunz: 
9.AF.10
Crystal System: 
Orthorhombic
Hardness: 
6.5 - 7.5
Streak: 
White
Type Locality: 
El Cardoso de la Sierra, Guadalajara, Castile-La Mancha, Spain