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Haüyne Psm Plagioclase With Phlogopite & Pyrite

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KRM164609

Haüyne Psm Plagioclase With Phlogopite & Pyrite

Description Tabs

Description
Locality: 
Ladjuar Madan, Kokcha Valley, Badakhshan Province, Afghanistan
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 9.5 × 7 cm
Description

 A very good unusual specimen of large well terminated hauyn psm plagioclase incombination with well terminated gemmy phlogopite and minor pyrite crystals.

 

 

Mineral Data
What's on the rock

Haüyne

Formula: 
(Na,Ca)4-8(Al6Si6O24)(SO4,S,Cl)1-2
Strunz: 
9.FB.10
Hardness: 
5.5 - 6.0
Type Locality: 
Lake Nemi, Alban Hills, Rome Province, Latium, Italy

Phlogopite

Formula: 
KMg3(AlSi3O10)(OH,F)2
Strunz: 
9.EC.20
Crystal System: 
Monoclinic - Prismatic
Hardness: 
2.0 - 3.0
Streak: 
White

Pyrite

Formula: 
FeS2
Strunz: 
2.EB.05a
Crystal System: 
Isometric
Hardness: 
6.0 - 6.5

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