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Okenite With Apophyllite On Prehnite

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SHW673377

Okenite With Apophyllite On Prehnite

Description Tabs

Description
Locality: 
Malad Quarry, Mumbai, Maharashtra, India
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
4 × 5.8 × 2 cm
Weight: 
53.00gr
Description

Pluffy balls of okenite with clear apophyllite on matrix of ocean green prehnite.

Mines producing top quality Okenite & Prehnite in Malad are already closed due to expansion of localities around.

Mineral Data
What's on the rock

Okenite

Formula: 
CaSi2O5·2H2O
Strunz: 
9.EA.40
Hardness: 
4.5 - 5.0
Type Locality: 
Qutdligssat (Kudlisat), Qeqertarsuaq Island (Disko Island), Qaasuitsup, Greenland

Prehnite

Formula: 
Ca2Al2Si3O10(OH)2
Strunz: 
9.DP.20
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Karoo dolerites, Cradock, Chris Hani District, Eastern Cape Province, South Africa

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

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