AM_Mullite_1 Formula: Al2.4 Si.6 O4.8 Name: Mullite Unit cell: 7.588 7.688 2.8895 90.0 90.0 90.0 , V=168.56 Space group: PBAM (55)

Angel R J , McMullan R K , Prewitt C T , American Mineralogist , 76 (1991) p.332-342, Substructure and superstructure of mullite by neutron diffraction, Model 1 Neutron