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Haineaultite & Monteregianite-(Y)

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SYM169248

Haineaultite & Monteregianite-(Y)

Type Locality

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1 × 0.5 cm
Description

Yellow haineaultite crystats with grey sprays of montergianite-y.

Mineral Data
What's on the rock

Haineaultite

Formula: 
(Na,Ca)5Ca(Ti,Nb)5(Si6O17)2(OH,F)8·5H2O
Strunz: 
9.DG.50
Hardness: 
3.0 - 4.0
Streak: 
white
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

Monteregianite-(Y)

Formula: 
(Na,K)6(Y,Ca)2Si16O38·10H2O
Strunz: 
9.EB.15
Hardness: 
3.5
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