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Prehnite

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QRI779476

Prehnite

Former collection Christian Mavris
With Antique Label

Description Tabs

Description
Locality: 
Saualpe, Völkermarkt District, Carinthia, Austria
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 5.8 × 3.8 cm
Largest Crystal: 
1.50cm
Weight: 
105.00gr
Description

Historical specimen of over a dozen well crystallized prehnite crystals in a (meta?)volcanic vug. Prehnite has a medium lustre for the specie and the locality.

It comes from an older Italian collection which I reckon being over 100 years old. Both the labels are handwritten in Italian.

A lucky acquisition at the Munich Show 2019, set with a reasonable reserve price for such an item.

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

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