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Natrolite With Analcime

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QRI646745

Natrolite With 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: 
5 × 9.6 × 5.2 cm
Largest Crystal: 
1.40cm
Description

Delicate pink natrolite associated to creamy analcime in a basaltic vug. Natrolite is pretty good for the locality and the luster is strong, with transparent and well visible terminations, and excellent color. Analcime crystals are well formed, with visible growth patterns on the faces, and a few sprays of natrolite departing from them.

A very representative specimen from the locality. Excess matrix was sawn off for better display. Acquired in 2001 at the Bologna Mineral Show (old location).

Acquired: 
2001
Mineral Data
What's on the rock

Natrolite

Formula: 
Na2Al2Si3O10·2H2O
Strunz: 
9.GA.05
Hardness: 
5.0 - 5.5
Streak: 
White
Type Locality: 
Hohentwiel, Singen, Hegau, Baden-Württemberg, Germany

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

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