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Stilbite

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MCH149604

Stilbite

Description Tabs

Description
Locality: 
Railway Tunnel 3.85, Dale, Vaksdal, Hordaland, Norway
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 1.9 × 0.8 cm
Description

Very pretty, orange coloured crystals of stilbite found during the construction works of a new railway tunnel.

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

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