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Epistilbite & Chabazite

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SMM723129

Epistilbite & Chabazite

Description Tabs

Description
Locality: 
Su Marralzu, Osilo, Sassari Province, Sardinia, Italy
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 1.5 × 1.5 cm
Description

Groups of crystals of epistilbite and "phacolite" crystals.

Boxed with Label
Mineral Data
What's on the rock

Epistilbite

Formula: 
CaAl2Si6O16·5H2O
Strunz: 
9.GD.45
Hardness: 
4.0
Streak: 
white
Type Locality: 
Breiðdalur- Berufjörður area, Suður-Múlasýsla, Eastern Region, Iceland

Chabazite

Synonym Of: 

Chabazite-Ca

Formula: 
(Ca,K2,Na2)2[Al2Si4O12]2·12H2O
Strunz: 
9.GD.10
Hardness: 
4.0 - 5.0

Chabazite-K

Formula: 
(K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2·12H2O
Strunz: 
9.GD.10
Hardness: 
4.0

Chabazite-Mg

Formula: 
(Mg0.7K0.5Ca0.5Na0.1)[Al3Si9O24]·10H2O
Strunz: 
9.GD.10
Hardness: 
4.0 - 0.0

Chabazite-Na

Formula: 
(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2·12H2O
Strunz: 
9.GD.10
Hardness: 
4.0

Chabazite-Sr

Formula: 
Sr2[Al2Si4O12]2·12H2O
Strunz: 
9.GD.10
Hardness: 
4.0 - 4.5

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