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Gonnardite & Analcime

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MII184647

Gonnardite & Analcime

Description Tabs

Description
Locality: 
Mount Caliella, Palagonia, Catania Province, Sicily, Italy
Size Range: 
Thumbnail (1-3cm)
Size: 
2.8 × 2.5 × 1.3 cm
Largest Crystal: 
1.50cm
Description

Some small transparent crystals of analcime at the base of this group of roundish gonnardite

Mineral Data
What's on the rock

Gonnardite

Formula: 
(Na,Ca)2(Si,Al)5O10·3H2O
Strunz: 
9.GA.05
Hardness: 
4.0 - 5.0
Type Locality: 
La Chaux de Bergonne, Gignat, Saint-Germain-Lembron, Puy-de-Dôme, Auvergne, France

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
MineralsIsland

Seller Information

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