Citation: Grice, J. C.; Gault, R. A. (2006). Johnsenite-(Ce): A new member of the eudialyte group from Mont Saint-Hilaire, Quebec, Canada Locality: Poudrette Quarry, Mont Saint-Hilaire, Rouville County, Quebec, Canada Note: Occupancies invented to satisfy constraints from paper. The Canadian Mineralogist, 44, pp. 105-115.