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Gonnardite

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LAM968793

Gonnardite

Classic Locality

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Description
Locality: 
Campo de Calatrava Volcanic Field, Ciudad Real, Castilla La Mancha, Spain
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 3.5 × 1 cm
Description

Spherical aggregates of white gonnardite on matrix

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

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