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Tourmaline

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NST706399

Tourmaline

Description Tabs

Description
Locality: 
Teofilo Otoni, Mucuri Valley, Minas Gerais, Brazil
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
11.5 × 6.5 × 5 cm
Largest Crystal: 
2.60cm
Description

A rich specimen of blueish Tourmalines and creme-colored mica from Teofilo Otoni.
 

Mineral Data
What's on the rock

Tourmaline

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