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Diamond Var Bort

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CLB83001

Diamond Var Bort

bought at the locality in March 2011

Description Tabs

Description
Locality: 
Banankoro, Kérouané Prefecture, Kankan Region, Guinea
Size Range: 
Micromount (under 1cm)
Size: 
0.7 × 0.5 × 0.3 cm
Largest Crystal: 
0.70cm
Description

Yes, this ugly critter is also a diamond. Bort is the black variety, unsuitable for gem-cutting, but highly desired for drill-tips as the bort's special inner structure adds to the diamond's natural hardness.

Mineral Data
What's on the rock

Diamond

Formula: 
C
Strunz: 
1.CB.10a
Crystal System: 
Isometric
Hardness: 
10.0
Streak: 
none

Bort

Variety Of: 

Diamond

Formula: 
C
Strunz: 
1.CB.10a
Hardness: 
10.0
Hardness: 
0.0
Colour: 
Black

Seller Information

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