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Tourmaline With Quartz & Lepidolite

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KRM92613

Tourmaline With Quartz & Lepidolite

Description Tabs

Description
Locality: 
Darrah I Pech, Chapa Dara District, Kunar Province, Afghanistan
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.8 × 5 × 4 cm
Description

Well terminated brown green tourmaline incombination with well terminated quartz, there is no damage except minor etching on quartz.

A very good tourmaline specimen.

The specimen could further be cleaned.

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

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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