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Analcime

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CR518446

Analcime

Classic Locality

Description Tabs

Description
Locality: 
Siusi Alp, South Tirol, Trentino-Alto Adige, Italy
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.5 × 5.8 × 4.3 cm
Description

This is an old-time alpine specimen of large, gleaming, sharp crystals of analcime, measuring to 2.8 cm across. They are sitting nicely atop a typical grayish matrix.

Exquisite specimen from Fritz Haller collection.

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