AM_Ringwoodite_13 Formula: Mg1.89 Si.98 O4 H.3 Name: Ringwoodite Unit cell: 8.0693 8.0693 8.0693 90.0 90.0 90.0 , V=525.42 Space group: FD3M (227)

Kudoh Y , Kuribayashi T , Mizobata H , Ohtami E , Physics and Chemistry of Minerals , 27 (2000) p.474-479, Structure and cation disorder of hydrous ringwoodite,, gamma-Mg1.89Si0.98H0.30O4