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Stilbite

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MGR815133

Stilbite

Classic Locality

Description Tabs

Description
Locality: 
Streymoy Island, Faroe Islands, Denmark
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
9 × 4.6 × 3.1 cm
Description

Excellent specimen of well developed aggregates of snowy white stibite aggregates. They are attractively set exposed on matrix - the specimen looks really great in various positions! No significant damages to report.

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