AM_Majorite_2 Formula: Mg3.374 Al1.252 Si3.374 O12 Name: Majorite Unit cell: 11.4833 11.4833 11.4833 90.0 90.0 90.0 , V=1514.26 Space group: I41/ACD (142)

Nakatsuka A , Yoshiasa A , Yamanaka T , Ohtaka O , Katsura T , Ito E , American Mineralogist , 84 (1999) p.1135-1143, Symmetry change of majorite solid-solution in the system Mg3Al2Si3O12-MgSiO3, Sample: x = .38