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Tourmaline

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MGR969014

Tourmaline

Classic Locality

Description Tabs

Description
Locality: 
Coronel Murta, Minas Gerais, Brazil
Class: 
Single Crystal
Size Range: 
Thumbnail (1-3cm)
Size: 
1.9 × 1.5 × 0.1 cm
Description

Fine cut and polished specimen of tourmaline from Brazil. The colour fades from a grass green to a more olive green and also some reddish colour is present.

Mineral Data
What's on the rock

Tourmaline

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