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Apophyllite & Stilbite

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Apophyllite & Stilbite

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Description
Locality: 
Jalgoan Quarries, Maharashtra, India
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
3 × 9 × 8 cm
Weight: 
180.00gr
Description

Plate like formation of cluster of pointed clear apophyllite with orange stilbite. It has left from the rock during blasting in the mines. So, there is absolutely no rock at the bottom of the specimen.

Apophyllite crystals are gemmy having very good surface texture with a combination of male female crystals. Crystals with pointed termination are called male crystals and crystals with edge like termination are called female crystals.

Mineral Data
What's on the rock

Apophyllite

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

Hydroxyapophyllite-(K)

Formula: 
KCa4(Si8O20)(OH,F)·8H2O
Strunz: 
9.EA.15
Hardness: 
4.0 - 5.0

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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