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Prehnite & Calcite

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JJH866835

Prehnite & Calcite

Self collected
Classic Locality

Description Tabs

Description
Locality: 
Dean Quarry, St Keverne, Cornwall, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
4 × 7.5 × 8 cm
Largest Crystal: 
1.50cm
Weight: 
251.00gr
Description

Pale green botryoidal prehnite with clear calcite 'rhombs' to 15mm.

Collected: 
16/10/1999
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

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

Buy Now price

£25
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Shipping Information

Postage Area Price
UK
£4.50
EU
8.50
ROW
$10
USA
$10

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