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Sillimanite

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CFL880000

Sillimanite

Description Tabs

Description
Locality: 
Montauban Deposit, Mékinac RCM, Mauricie, Québec, Canada
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 5 × 4.5 cm
Description

Sillimanite crystals on matrix, associated with unidentified sulphides, from this little known Canadian locality.

Mineral Data
What's on the rock

Sillimanite

Formula: 
Al2(SiO4)O
Strunz: 
9.AF.05
Crystal System: 
Orthorhombic
Hardness: 
6.5 - 7.5
Streak: 
white
Type Locality: 
Chester, Middlesex Co., Connecticut, USA

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