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Analcime With Biotite

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KRM105107

Analcime With Biotite

Description Tabs

Description
Locality: 
Yuno, Shigar Valley, Baltistan, Gilgit-Baltistan, Pakistan
Size Range: 
Miniature (4.5-7 cm)
Size: 
3.5 × 5.4 × 4.3 cm
Description

An unusual specimen from the locality of large well doubly terminated crystals of analcime incombination with biotite.

Undamaged.

Mineral Data
What's on the rock

Analcime

Formula: 
Na2(Al2Si4O12)·2H2O
Strunz: 
9.GB.05
Crystal System: 
Triclinic
Hardness: 
5.0 - 5.5
Streak: 
White
Type Locality: 
Cyclopean Islands, Acitrezza (Aci Trezza), Etna Volcanic Complex, Catania Province, Sicily, Italy

Biotite

Group Parent: 
Mica Group