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Stilbite & Fluorapophyllite

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CFL698692

Stilbite & Fluorapophyllite

Description Tabs

Description
Locality: 
Jalgoan Quarries, Maharashtra, India
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 3.5 × 3 cm
Weight: 
70.00gr
Description

Typical specimen of stilbite crsytals, up to 3 cm in size, associated with blocky colorless gemmy fluorapophyllite crystals and quartz microcrystals.  Ex-Don Davis specimen.

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

Fluorapophyllite

Synonym Of: 

Fluorapophyllite-(K)

Formula: 
KCa4(Si8O20)(F,OH)·8H2O
Strunz: 
9.EA.15
Hardness: 
4.5 - 5.0

Fluorapophyllite-(Na)

Formula: 
NaCa4(Si8O20)F·8H2O
Strunz: 
9.EA.15
Hardness: 
4.0 - 5.0

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