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Gyrolite On Prehnite

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CR699762

Gyrolite On Prehnite

Description Tabs

Description
Locality: 
Pune (Poonah), Maharashtra, India
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
10.5 × 7 × 3.5 cm
Weight: 
280.00gr
Description

Beautiful white, globular gyrolite on prehnite matrix.

Very nice old specimen from Wolfgang Schneider collection.

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

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