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Tourmaline With Quartz

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IKM687758

Tourmaline With Quartz

Description Tabs

Description
Locality: 
Kiran, Kokcha Valley, Khash & Kuran Wa Munjan District, Badakhshan Province, Afghanistan
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
11 × 7 × 6 cm
Largest Crystal: 
2.50cm
Description

 Large specimen of dark green tourmaline with quartz,the main tourmaline crystal size is 2.5 cm and damage free.

Mineral Data
What's on the rock

Tourmaline

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

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

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