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Adamsite-(Y) & Franconite

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SYM153969

Adamsite-(Y) & Franconite

Type Locality

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Size Range: 
Thumbnail (1-3cm)
Size: 
1.4 × 1.7 × 1.7 cm
Description

Rich sprays of adamsite Y with many white balls of franconite.

Mineral Data
What's on the rock

Adamsite-(Y)

Formula: 
NaY[CO3]2·6H2O
Strunz: 
5.CC.30
Crystal System: 
Triclinic
Hardness: 
3.0
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

Franconite

Formula: 
Na2Nb4O11·9H2O
Strunz: 
4.FM.15
Crystal System: 
Monoclinic
Hardness: 
4.0
Type Locality: 
Francon quarry, Montréal, Québec, Canada