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Stilbite & Adularia

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Stilbite & Adularia

Classic Locality

Description Tabs

Description
Locality: 
Hollersbach im Pinzgau, Zell am See District, Salzburg, Austria
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 4 × 4 cm
Description

A cluster of white stilbite sprays on sharp colourless adularia crystals

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

Adularia

Formula: 
KAlSi3O8
Strunz: 
9.FA.30
Crystal System: 
Monoclinic
Hardness: 
6 Ortho - clase