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: B019, P = 87.8 GPa, T = 300 K _database_code_amcsd 0004593 2.5971 8.4089 6.4064 90 90 90 Cmcm atom x y z Mg 0 .2533 .25 Ge 0 0 0 O1 0 .9176 .25 O2 0 .6400 .4395