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Okenite With Gyrolite & Calcite

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SHW618815

Okenite With Gyrolite & Calcite

Description Tabs

Description
Locality: 
Malad Quarry, Mumbai, Maharashtra, India
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
3 × 6.5 × 4.5 cm
Weight: 
83.00gr
Description

Puffy hairy balls of okenite on matrix with gyrolite and light brown calcites on basalt.

Most of the mines in Malad, Mumbai where Okenite was found are closed due to expansion of the localities around. Some specimens are found during excavation for new buildings in nearby areas.

Okenite hairs are bonded very rigidly with base. If they get pressed, they can be easily brought to original position just with the spray of forced dry air. 

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

Gyrolite

Formula: 
NaCa16Si23AlO60(OH)8·14H2O
Strunz: 
9.EE.30
Hardness: 
2.5
Streak: 
White
Type Locality: 
The Storr, Portree, Trotternish, Isle of Skye, North West Highlands (Inverness-shire), Scotland, UK

Calcite

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

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