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Gonnardite & Laumontite On Calcite

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TBM1071848

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Description
Locality: 
Crastu Muradu Quarry, Osilo, Sassari Province, Sardinia, Italy
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
2.5 × 6 × 4 cm
Largest Crystal: 
0.40cm
Weight: 
57.00gr
Description

Very nice pink fan-shaped Gonnardite crystals up to 4 mm with Laumontite crystals up to 4 mm on light green crystals of gobular Calcite

Mineral Data
What's on the rock

Gonnardite

Formula: 
(Na,Ca)2(Si,Al)5O10·3H2O
Strunz: 
9.GA.05
Hardness: 
4.0 - 5.0
Type Locality: 
La Chaux de Bergonne, Gignat, Saint-Germain-Lembron, Puy-de-Dôme, Auvergne, France

Laumontite

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

Calcite

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

Current price

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10
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Start 22 Sep 18:00
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Shipping Information

Postage Area Price
ITALY
9.50
EUROPE ( AREA 1)
13.50
AMERICAN - UK - ASIA - AFRICA - OCEANIA ( AREA 2/3):
17

Bid History

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