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Marialite With Nepheline Inclusions

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KRM680418

Marialite With Nepheline Inclusions

Description Tabs

Description
Locality: 
Pitwak Mine, Ladjuar Medam, Koksha Valley, Khash & Kuran Wa Munjan District, Badakhshan Province, Afghanistan
Class: 
Single Crystal
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 1.9 × 1.8 cm
Description

Nice gemmy colorless Marialite with nepheline inclusion, minor etching can be seen , nice example

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

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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