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Petarasite

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CR20769

Petarasite

Ex National Museum of Natural Sciences (USA)
Rare Mineral

Description Tabs

Description
Locality: 
Mont Saint-Hilaire, Montérégie, Québec, Canada
Size Range: 
Small cabinet (7-10 cm)
Size: 
5 × 7.4 × 2.8 cm
Largest Crystal: 
1.00cm
Description

From an old collection comes this specimen with a deep yellow crystal of petarasite.

Ex National Museum of Natural Sciences with original label.

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