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Pollucite With Tourmaline Lepidolite & Quartz

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KRM513825

Pollucite With Tourmaline Lepidolite & Quartz

Description Tabs

Description
Locality: 
Mawi, Nuristan Province, Afghanistan
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
4.3 × 7.2 × 5.5 cm
Description

A very good nice combination specimen of bright gemmy perfect pollucite , tourmaline , lepidolite , and well terminated quartz crystals.

No damage , very good high quality specimen from the locality.

Mineral Data
What's on the rock

Pollucite

Formula: 
(Cs,Na)2(Al2Si4O12)·2H2O
Strunz: 
9.GB.05
Hardness: 
6.5
Streak: 
white
Type Locality: 
La Speranza (Pisani's Quarry), San Piero in Campo, Campo nell'Elba, Elba Island, Livorno Province, Tuscany, Italy...

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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