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Gonnardite

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SHS792387

Gonnardite

Description Tabs

Description
Locality: 
Schellkopf, Brenk, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.2 × 4.6 × 2.6 cm
Description

Nice gonnardite crystals 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