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Corundum

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NST730928

Corundum

Description Tabs

Description
Locality: 
Biasca, Leventina, Ticino, Switzerland
Class: 
Single Crystal
Size Range: 
Thumbnail (1-3cm)
Size: 
2.9 × 1.9 × 1 cm
Description

A greenish crystal fragment of Corundum from Biasca. Comes with an antique handwritten label.

Mineral Data
What's on the rock

Corundum

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