data_9010456
_publ_section_title
;
 Rietveld structure refinement of MgGeO3 post-perovskite phase to 1 Mbar
 Locality: Synthetic
 Sample: A036, P = 105.4 GPa, T = 300 K
;
_journal_name_full               'American Mineralogist'
_journal_page_first              965
_journal_page_last               976
_journal_paper_doi               10.2138/am.2008.2691
_journal_volume                  93
_journal_year                    2008
_chemical_formula_structural     MgGeO3
_chemical_formula_sum            'Ge Mg O3'
_space_group_IT_number           63
_symmetry_space_group_name_Hall  '-C 2c 2'
_symmetry_space_group_name_H-M   'C m c m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   2.5718
_cell_length_b                   8.3274
_cell_length_c                   6.3536
_cell_volume                     136.071
_diffrn_ambient_pressure         1.054e+08
_diffrn_ambient_temperature      300
_exptl_crystal_density_diffrn    7.074
_[local]_cod_chemical_formula_sum_orig 'Mg Ge O3'
_cod_database_code               9010456
loop_
_symmetry_equiv_pos_as_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 0.26010 0.25000
Ge 0.00000 0.00000 0.00000
O1 0.00000 0.90610 0.25000
O2 0.00000 0.64040 0.43650
