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Synthetic Corundum

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NST665926

Synthetic Corundum

Description Tabs

Description
Locality: 
Not Known
Class: 
Massive/Crystalline
Size Range: 
Small cabinet (7-10 cm)
Size: 
9 × 3.2 × 3 cm
Description

A set of three synthetic corundum samples.

1.) A ore rich purple corundum slag measuring 9 x 3.2 x 3 cm

2.) A slag with tabular corundum measuring 7.7 x 4 x 3 cm

3.) a faceted, color-changing, synthetic corundum measuring 0.9 x 0.9 x 0.5 cm.

Mineral Data
What's on the rock

Corundum

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