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Tourmaline With Topaz & Lepidolite

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KRM691426

Tourmaline With Topaz & Lepidolite

Description Tabs

Description
Locality: 
Wigal, Ghaziabad District, Kunar Province, Afghanistan
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 3 × 1.7 cm
Description

Well terminated gemmy elbaite crystal; and well terminated topaz crystal hosts to lepidolite , this specimen could further be cleaned. undamaged  , nice specimen.

Mineral Data
What's on the rock

Tourmaline

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

Topaz

Formula: 
Al2(SiO4)(F,OH)2
Strunz: 
9.AF.35
Crystal System: 
Orthorhombic - Dipyramidal
Hardness: 
8.0
Streak: 
White

Lepidolite

Synonym Of: 

Mica Group

Formula: 
KLi2Al(Si4O10)(F,OH)2 to K(Li1.5Al1.5)(AlSi3O10)(F,OH)2
Group Parent: 
Mica
Hardness: 
2.5 - 3.5
Colour: 
Pink, light purple, light rose red
Streak: 
White

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