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Corundum

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TBM1063836

Corundum

Classic Locality

Description Tabs

Description
Locality: 
Ponte di Salaro, Sabbia, Varallo Sesia, Vercelli Province, Piedmont, Italy
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2.7 × 2.5 cm
Largest Crystal: 
2.40cm
Weight: 
30.00gr
Description

Very nice blue-grey Corundum crystal up to 24 mm on matrix

Mineral Data
What's on the rock

Corundum

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