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Prehnite & Okenite

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CR209469

Prehnite & Okenite

Description Tabs

Description
Locality: 
Pune (Poonah), Maharashtra, India
Size Range: 
Cabinet (10-18 cm)
Size: 
15 × 12 × 8 cm
Description

Very attractive and showy prehnite geode with silky white okenite hedgehogs.

Beautiful display specimen from Armin Wendland collection - acquired 1985

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

Okenite

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