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Stilbite

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SHS597174

Stilbite

ex Collection Edgar Franz(Freiberg/Saxony)

Description Tabs

Description
Locality: 
Perkiomenville, Marlborough Township, Montgomery County, Pennsylvania, United States of America
Class: 
Massive/Crystalline
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.7 × 8.5 × 3.5 cm
Description

Stilbite on matrix

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