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Stilbite

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PCZ636880

Stilbite

Description Tabs

Description
Locality: 
Pune (Poonah), Maharashtra, India
Class: 
Crystal Group/Cluster
Size Range: 
Cabinet (10-18 cm)
Size: 
10 × 8.5 × 7 cm
Description

Stocky single crystals (not sheaves) of what I believe to be stilbite (but possibly heulandite). 

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
Peter Crozier Minerals

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Start 10 Feb 13:00
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