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Corundum Var Ruby

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CR188130

Corundum Var Ruby

Description Tabs

Description
Locality: 
Mysore, Karnataka, India
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.6 × 4.3 × 2 cm
Description

Not a gem crystal, of course, but this is technically a ruby (red corundum) that is really huge for having such a sharp euhedral form!It is completely crystallized all around and on both sides - just a impressive corundum crystal

Mineral Data
What's on the rock

Corundum

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

Ruby

Variety Of: 

Corundum

Formula: 
Al2O3
Strunz: 
4.CB.05
Hardness: 
9.0
Formula: 
Al2O3
Crystal System: 
Hexagonal
Hardness: 
9.0
Colour: 
Red