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Apophyllite & Stilbite

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Apophyllite & Stilbite

Description Tabs

Description
Locality: 
Jalgoan Quarries, Maharashtra, India
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 4.5 × 4 cm
Largest Crystal: 
4.00cm
Weight: 
50.00gr
Description

Free standing stalactite of pointed clear Apophyllite with orange Stilbite grown over Quartz coated Calcite. 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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