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Stilbite

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RHT537810

Stilbite

ex collection Achim Siebert
Classic Locality

Description Tabs

Description
Locality: 
Moar Alp, Bramberg am Wildkogel, Zell am See District, Salzburg, Austria
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.7 × 4.6 × 3.5 cm
Weight: 
103.00gr
Description

Nice sample of alpine stilbite from the famous Habach valley.

Mineral Data
What's on the rock

Stilbite

Synonym Of: 

Stilbite-Ca

Formula: 
NaCa4[Al9Si27O72]·nH2O
Strunz: 
9.GE.10
Hardness: 
3.5 - 4.0

Stilbite-Na

Formula: 
(Na,Ca,K)6-7[Al8Si28O72]·nH2O
Strunz: 
9.GE.10
Hardness: 
3.5 - 4.0
Hardness: 
3.5 - 4
Colour: 
White
Streak: 
White