AM_Ringwoodite Formula: Si Mg2 O4 Name: Ringwoodite Unit cell: 8.12 8.12 8.12 90.0 90.0 90.0 , V=535.39 Space group: FD3M (227)

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, normal