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Sodalite Psm Nepheline

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KRM46980

Sodalite Psm Nepheline

Description Tabs

Description
Locality: 
Sar-e Sang, Koksha Valley, Khash & Kuran Wa Munjan Districts, Badakhshan Province, Afghanistan
Size Range: 
Thumbnail (1-3cm)
Size: 
2.8 × 2.2 × 2.3 cm
Largest Crystal: 
0.60cm
Description

These specimens first appeared last year, and were usually seen as crystal groups on matrix.

This specimen is a single well terminated bright blue color undamaged sodalite psm nepheline within calcite.

The colour is true and not just at the surface indicating a complete replacement.

An excellent thumbnail!

Mineral Data
What's on the rock

Sodalite

Formula: 
Na8(Al6Si6O24)Cl2
Strunz: 
9.FB.10
Crystal System: 
Isometric
Hardness: 
5.5 - 6.0
Streak: 
White
Type Locality: 
Ilímaussaq complex, Narsaq, Kujalleq, Greenland

Nepheline

Formula: 
(Na,K)AlSiO4
Strunz: 
9.FA.05
Hardness: 
5.5 - 6.0
Type Locality: 
Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy
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