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Prehnite

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PCZ760563

Prehnite

Ex Gabrys Museum
With Antique Label

Description Tabs

Description
Locality: 
Ravneberget Quarry, Søndeled, Risør, Agder, Norway
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.3 × 4.3 × 3.8 cm
Description

A classic antique speimen of  green prehnite forming attractive sphere like aggregates.  A nice vintage hand written label stating the year of colletion as 1922. Very rarely seen Norwegian material.

Condition
General: 
Good - locality specimen
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
Provenance
Peter Crozier Minerals