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Stilbite Mesolite In Basalt

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HAN907413

Stilbite Mesolite In Basalt

Description Tabs

Description
Locality: 
Hafrafell, Skaftafell, Hornafjörður, Eastern Region, Iceland
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.1 × 6.7 × 4.7 cm
Weight: 
140.00gr
Description

Pearlescent sword-shaped crystals of Stilbite with radiating sprays of Mesolite in a cavity in basalt

specimen dated 1974

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

Mesolite

Formula: 
Na2Ca2Si9Al6O30·8H2O
Strunz: 
9.GA.05
Hardness: 
5.0

Basalt

Variety Of: 

Igneous Rock

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