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Tourmaline

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Watches:
MGR678051

Tourmaline

Description Tabs

Description
Locality: 
Pederneira Mine, São José da Safira, Minas Gerais, Brazil
Class: 
Single Crystal
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.8 × 1.3 × 1.1 cm
Description

The crystal is sharp terminated and highly lustrous all around. It shows a very intense dark green color and very good translucency - it didn´t need any backlight to show the internal color. 

Mineral Data
What's on the rock

Tourmaline

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