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Petarasite & Gonnardite

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SYM621841

Petarasite & Gonnardite

Rare Mineral

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.3 × 1.5 × 1.5 cm
Description

Rasberry petarasite crystals with gonnardite on a carpet of what i think is aegirine. 

Mineral Data
What's on the rock

Petarasite

Formula: 
Na5Zr2(Si6O18)(Cl,OH)·2H2O
Strunz: 
9.CJ.40
Hardness: 
5.0 - 5.5
Type Locality: 
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

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