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Afghanite

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Afghanite

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Description
Locality: 
Ladjuar Madan, Kokcha Valley, Badakhshan Province, Afghanistan
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.8 × 2.7 × 1.6 cm
Largest Crystal: 
1.00cm
Description

Well terminated glassy gemmy blue Afghanite crystal hosts to marble / calcite matrix , this color and clearity hardly to come , Nice afghanite specimen from the locality , old specimen

Mineral Data
What's on the rock

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

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