AM_Mayenite_5 Formula: Ca6 Al7 O16.498 Name: Mayenite Unit cell: 11.989 11.989 11.989 90.0 90.0 90.0 , V=1723.25 Space group: I-43D (220)

Bartl H , Scheller T , Neues Jahrbuch fur Mineralogie, Monatshefte , 1970 (1970) p.547-552, Zur struktur des 12CaO*7Al2O3, Locality: synthetic