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Reederite-(Y)
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
Mineral Data
(Na,Mn)
15
Y
2
(CO
3
)
9
(FSO
3
)Cl
Strunz:
5.BF.20
Physical Properties
Crystal System:
Hexagonal
Streak:
White
Hardness:
3.0 - 3.5
Synonyms
Synonyms:
Reederite-Y, Reederite Y and Reederite - Y
