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Tourmaline

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MGR886659

Tourmaline

Classic Locality

Description Tabs

Description
Locality: 
Doce Valley, Minas Gerais, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.7 × 2.5 × 1.3 cm
Description

Nicely coloured and zoned tourmaline crystal with a second smaller one attached to it. Cool form of the specimen and a fine miniature from this famous mine.

Mineral Data
What's on the rock

Tourmaline

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