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Tourmaline

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MGR970402

Tourmaline

Description Tabs

Description
Locality: 
Oyo, Oyo State, Nigeria
Class: 
Artefact
Size Range: 
Thumbnail (1-3cm)
Size: 
1.6 × 0.9 × 0.7 cm
Description

Fantastic cut and facetted specimen of intense olive green tourmaline from Nigeria which is cut in baguette style.

The piece has only small inclusions visible and a weight of 7,95 carat.

Mineral Data
What's on the rock

Tourmaline

Formula: 
A(D3)G6(T6O18)(BO3)3X3Z
Crystal System: 
Trigonal
Hardness: 
7