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Fluornatromicrolite With Spodumene & Quartz

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KRM106691

Fluornatromicrolite With Spodumene & Quartz

Description Tabs

Description
Locality: 
Darrah I Pech, Chapa Dara District, Kunar Province, Afghanistan
Size Range: 
Cabinet (10-18 cm)
Size: 
12.6 × 8 × 6.2 cm
Description

An interesting combination specimen of well terminated rare fluornatromicrolite , gemmy green spodumene , well terminated quartz & snow white well terminated cleavlandite.

The spodumene crystal is rehead at top edge, the quartz crystals has minor chipping.

A very good large nice combination specimen from the locality.

Mineral Data
What's on the rock

Fluornatromicrolite

Formula: 
(Na,Ca,Bi)2Ta2O6F
Strunz: 
4.DH.15
Crystal System: 
Isometric
Hardness: 
5.0 - 0.0
Colour: 
Green
Streak: 
White
Type Locality: 
Quixaba pegmatite, Quixaba, Frei Martinho, Borborema mineral province, Paraíba, Brazil

Spodumene

Formula: 
LiAlSi2O6
Group Parent: 
Clinopyroxene Subgroup
Strunz: 
9.DA.30
Crystal System: 
Monoclinic
Hardness: 
6.5 - 7.0
Colour: 
colorless, yellow
Streak: 
White
Type Locality: 
Utö Mines, Utö, Södermanland, Sweden

Quartz

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

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