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Prehnite With Apophyllite

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SHW673375

Prehnite With Apophyllite

Description Tabs

Description
Locality: 
Malad Quarry, Mumbai, Maharashtra, India
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 6.2 × 3.6 cm
Weight: 
20.00gr
Description

Cluster of ocean green Prehnite with tubular fostred white Apophyllite.

Mines producing top quality Okenite & Prehnite in Malad are already closed due to expansion of localities around. However some time specimens are found in that aread during excavation work for foundation of big buildings.

Mineral Data
What's on the rock

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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