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Tourmaline Lepidolite & Quartz

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MGR742326

Tourmaline Lepidolite & Quartz

Description Tabs

Description
Locality: 
Paprok, Kamdesh District, Nuristan Province, Afghanistan
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.1 × 3.2 × 2 cm
Description

The specimen consists of inter grown Lepidolite crystals, which show a light lavender color. Sticked between some of the Lepidolite crystals you can see some sharp, lustrous and water-clear Rock Crystals and also some tiny Tourmalines. The main crystal grew through the Lepidolite. It is sharp terminated and highly lustrous. Most of the crystals shows a - for Paprok - uncommon strong green saturation, different to Brazilian green; reminds more to Emerald. Below the end point there is a thin nearly colorless zoning and finally a very strong concentration of purple color at the top.

Mineral Data
What's on the rock

Tourmaline

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

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

Quartz

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