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Stilbite

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MGR892941

Stilbite

Classic Locality

Description Tabs

Description
Locality: 
Bólstaðarhlíð, Northwestern Region, Iceland
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.8 × 4.9 × 2.7 cm
Description

This species was discovered in 1994 at this location. Numerous light blue stilbite crystals nicely set on matrix.

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