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Normandite

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
NaCa(Mn,Fe)(Ti,Nb,Zr)(Si2O7)OF
Strunz: 
9.BE.17
Physical Properties
Hardness: 
5.0 - 6.0
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