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Marialite Psm Afghanite

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KRM178999

Marialite Psm Afghanite

Description Tabs

Description
Locality: 
Ladjuar Madan, Kokcha Valley, Badakhshan Province, Afghanistan
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.4 × 5 × 3 cm
Description

 A large well terminated pale yellow marialite? psm afghanite with marble matrix.

Fluorescent.

Mineral Data
What's on the rock

Marialite

Formula: 
Na4Al3Si9O24Cl
Strunz: 
9.FB.15
Hardness: 
5.5 - 6.0
Streak: 
White
Type Locality: 
Pianura, Phlegrean Fields, Naples Province, Phlegrean Volcanic complex, Campania, Italy

Afghanite

Formula: 
(Na,Ca,K)8(Al6Si6O24)(Cl2,SO4,CO3)3·0.5H2O
Strunz: 
9.FB.05
Crystal System: 
Hexagonal
Hardness: 
5.5 - 6.0
Streak: 
white
Type Locality: 
Ladjuar Medam (Lajur Madan; Lapis-lazuli Mine; Lapis-lazuli deposit), Sar-e Sang (Sar Sang; Sary Sang), Koksha Valley (Kokscha Valley; Kokcha Valley), Khash & Kuran Wa Munjan Districts, Badakhshan Province (Badakshan Province; Badahsan Province), Afghanistan