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Prehnite

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QRI889924

Prehnite

Former collection Christian Mavris
Classic Locality

Description Tabs

Description
Locality: 
Manubiola Valley, Parma Province, Emilia-Romagna, Italy
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.7 × 4.4 × 2.6 cm
Weight: 
89.00gr
Description

Crusty apple green lustrous prehnite from a very rare find of prehnite in the Apennines of Parma, in Northern Italy. Prehnite shows botryoids of good quality and has been exposed by gentle etching of calcite.

Several trips later, and this is the only one I found. It dates back to the early 2000s, when I was a geology undergrad. 

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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