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Stilbite

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CR28742

Stilbite

Ex Naturhistoriska Riksmuseet, Stockholm
Classic Locality

Description Tabs

Description
Locality: 
Teigarhorn, Berufjord, Djúpavogshreppur, Eastern Region, Iceland
Size Range: 
Museum (18cm plus)
Size: 
18 × 11 × 7 cm
Largest Crystal: 
3.50cm
Description

This is an other very old zeolite specimen from the very famous classic locality. It shows beautiful and large stilbite crystals up to 3.5 cm.

Very good display specimen for the Naturhistoriska Riksmuseet Stockholm

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