AM_Tundrite-(Ce) Formula: Ce1.03 La.621 Nd.229 Pr.081 Sm.014 Na1.906 Ca.039 Ti.875 Nb.109 Si C2 O12.11 H.25 Name: Tundrite-(Ce) Unit cell: 7.576 13.9252 5.029 99.981 70.791 100.947 , V=488.36 Space group: P-1 (2)

Grice J D , Rowe R , Poirier G , Wight Q , The Canadian Mineralogist , 46 (2008) p.413-422, Tundrite-(Ce) from Mount Saint-Hilaire, Quebec: Crystal-structure, analysis and species characterization, Locality: Mount Saint-Hilaire, Quebec, Canada