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Prehnite & Quartz

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TPX921304

Prehnite & Quartz

Classic Locality

Description Tabs

Description
Locality: 
Los Taberneros Quarry, El Berrueco, Madrid, Madrid, Spain
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.3 × 3.7 × 2.8 cm
Weight: 
36.00gr
Description

Group of prehnite crystals on quartz matrix from this famous quarry now closed.

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

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

Seller Information

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