MgGeO3 Kubo A, Kiefer B, Shim S H, Shen G, Prakapenka V B, Duffy T S American Mineralogist 93 (2008) 965-976 Rietveld structure refinement of MgGeO3 post-perovskite phase to 1 Mbar Locality: Synthetic Sample: B018, P = 93.6 GPa, T = 1420 K _database_code_amcsd 0004592 2.5987 8.4107 6.4079 90 90 90 Cmcm atom x y z Mg 0 .2590 .25 Ge 0 0 0 O1 0 .9083 .25 O2 0 .6412 .4365