data_global _amcsd_formula_title 'MgGeO3' loop_ _publ_author_name 'Kubo A' 'Kiefer B' 'Shim S H' 'Shen G' 'Prakapenka V B' 'Duffy T S' _journal_name_full 'American Mineralogist' _journal_volume 93 _journal_year 2008 _journal_page_first 965 _journal_page_last 976 _publ_section_title ; Rietveld structure refinement of MgGeO3 post-perovskite phase to 1 Mbar Sample: B040, P = 79.2 GPa, T = 300 K ; _database_code_amcsd 0004596 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Mg Ge O3' _cell_length_a 2.6113 _cell_length_b 8.4602 _cell_length_c 6.4381 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 142.231 _exptl_crystal_density_diffrn 6.767 _symmetry_space_group_name_H-M 'C m c m' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,z' 'x,-y,1/2+z' '1/2+x,1/2-y,1/2+z' '-x,y,1/2-z' '1/2-x,1/2+y,1/2-z' '-x,y,z' '1/2-x,1/2+y,z' 'x,-y,-z' '1/2+x,1/2-y,-z' 'x,y,1/2-z' '1/2+x,1/2+y,1/2-z' '-x,-y,1/2+z' '1/2-x,1/2-y,1/2+z' '-x,-y,-z' '1/2-x,1/2-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Mg 0.00000 0.25550 0.25000 Ge 0.00000 0.00000 0.00000 O1 0.00000 0.91210 0.25000 O2 0.00000 0.63670 0.43700