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Tourmaline

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ESM719926

Tourmaline

Description Tabs

Description
Locality: 
Santa Maria do Sauçui, Minas Gerais, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
9 × 2.7 × 3.3 cm
Description

Blue tourmaline partially covered with muscovite crystals hosting a doubly terminated quartz crystal

Mineral Data
What's on the rock

Tourmaline

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