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Prehnite Psm Laumontite

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RHT677671

Prehnite Psm Laumontite

Pseudomorph

Description Tabs

Description
Locality: 
Malad Quarry, Mumbai, Maharashtra, India
Class: 
Crystal Group/Cluster
Size Range: 
Cabinet (10-18 cm)
Size: 
15.1 × 10 × 6 cm
Largest Crystal: 
8.50cm
Weight: 
340.00gr
Description

A spectacular specimen of pale green prehnite perimorph after laumontite. The prehnite covered the laumontite, the last dissolved, leaving a hollow cast. Therefore the specimen is very light for its size.

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

Laumontite

Formula: 
CaAl2Si4O12·4H2O
Strunz: 
9.GB.10
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Huelgoat (Locmaria-Berrien), Finistère, Brittany, France

Current price

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75
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Start 13 Oct 18:00
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Shipping Information

Postage Area Price
Inland Germany 4.80
5.50
EU 11.50
11.50
NON-EU 10.25
10.25
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