Akimotoite Horiuchi H, Hirano M, Ito E, Matsui Y American Mineralogist 67 (1982) 788-793 MgSiO3 (ilmenite-type): Single crystal X-ray diffraction study _database_code_amcsd 0000870 4.7284 4.7284 13.5591 90 90 120 R-3 atom x y z B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Si 0 0 .15768 .0063 .0063 .00057 .00315 0 0 Mg 0 0 .35970 .0100 .0100 .00059 .0050 0 0 O .3214 .0361 .24077 .0068 .0060 .00080 .0034 -.0001 .0001