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Stilbite

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GND31585

Stilbite

Classic Locality

Description Tabs

Description
Locality: 
Pune (Poonah), Maharashtra, India
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.4 × 4 × 2 cm
Description

Classic 'bow tie' arrangment of pure white stilbite crystals. While there is no attached matrix, you can see points of attachment to the matrix as in the photos.

No damage, this is a super example of the species.

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
Gondwana Minerals