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Prehnite

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QRI868164

Prehnite

Former collection Christian Mavris
Classic Locality

Description Tabs

Description
Locality: 
Patterson, Putnam County, New York, United States of America
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.5 × 7 × 4.5 cm
Largest Crystal: 
5.70cm
Weight: 
167.00gr
Description

A three-dimensional cabinet specimen featuring two well developed prehnite 'fingers' protruding off a prehnite-laden volcanic matrix. The color is a good apple green, very vivid, and with a moderate lustre. 
Minimal peripheral bruising around the main tip, this is a pleasant aesthetic specimen from the good finds at the old Patterson Quarry, which displays greatly in any showcase. 
Got in Tucson a few years ago, it has resided in my American Suite ever since.

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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