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Tourmaline

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ESM701592

Tourmaline

Description Tabs

Description
Locality: 
Morro Redondo Mine, Coronel Murta, Minas Gerais, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
1.7 × 3 × 1.2 cm
Description

A cluster of terminated translucent green tourmaline crystals

Mineral Data
What's on the rock

Tourmaline

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