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Tourmaline

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MGR924201

Tourmaline

Classic Locality

Description Tabs

Description
Locality: 
Pederneira Mine, São José da Safira, Minas Gerais, Brazil
Class: 
Single Crystal
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.1 × 1.2 × 0.9 cm
Description

A really fine crystal from the famous "rocket-pocket" at Pederneira mine. The crystal is highly lustrous and very transparent - I didn´t use any backlight or lamps for the photos! The end-points show pyramidal modifications - the typical habit for "rocket-pocket". The color is vivid green with minor blue green down to the base. One well done repair; no significant damages and on same high quality all around.

Mineral Data
What's on the rock

Tourmaline

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