AM_Mg2SiO4_2 Formula: Si Mg2 O4 Name: Mg2SiO4 Unit cell: 10.03 5.77 4.52 90.0 90.0 90.0 , V=261.59 Space group: C12/M1 (12)

Baur W H , American Mineralogist , 57 (1972) p.709-731, Computer-simulated crystal structures of observed and hypothetical Mg2SiO4, polymorphs of low and high density, Model III