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Corundum

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Watches:
CR13001

Corundum

With Antique Label

Description Tabs

Description
Locality: 
Miass, Chelyabinsk Oblast, Russian Federation
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 5.8 × 5 cm
Largest Crystal: 
5.30cm
Description

Very large buish-grey corundum crystals in pegmatite matrix from a very old collection with 3 beautiful old labels !

Mineral Data
What's on the rock

Corundum

Formula: 
Al2O3
Strunz: 
4.CB.05
Crystal System: 
Trigonal
Hardness: 
9.0
Streak: 
White