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Tourmaline

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CR103709

Tourmaline

Gem Crystal

Description Tabs

Description
Locality: 
Minas Gerais, Minas Gerais, Brazil
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.3 × 3.2 × 2.8 cm
Largest Crystal: 
3.30cm
Description

A old translucent, olivegreen tourmaline crystal with terminations from Alex Franz collection.

With two old labels.

Mineral Data
What's on the rock

Tourmaline

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