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Okenite & Apophyllite On Calcite

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SLN201683

Okenite & Apophyllite On Calcite

Description Tabs

Description
Locality: 
Wagholi Quarry, Pune, Maharashtra, India
Size Range: 
Small cabinet (7-10 cm)
Size: 
4.1 × 8.8 × 5.6 cm
Description

Nice and aesthetic specimen with big white aggregates of acicular okenite crystals with transparent apophyllite on pale creamy-nut calcite matrix

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

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

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

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