AM_Sodalite_14 Formula: Na3.76 Fe.04 Al3 Si3 O12 Cl Name: Sodalite Unit cell: 8.877 8.877 8.877 90.0 90.0 90.0 , V=699.52 Space group: P-43N (218)

Peterson R C , The Canadian Mineralogist , 21 (1983) p.549-552, The structure of hackmanite, a variety of sodalite, from Mont, St-Hilaire, Quebec, Locality: Mont St-Hilaire, Quebec, Canada