data_global
_chemical_name_mineral 'Bridgmanite'
loop_
_publ_author_name
'Yagi T'
'Mao H K'
'Bell P M'
_journal_name_full 'Physics and Chemistry of Minerals'
_journal_volume 3 
_journal_year 1978
_journal_page_first 97
_journal_page_last 110
_publ_section_title
;
 Structure and crystal chemistry of perovskite-type MgSiO3
 Sample: P = 1 bar, T = 25 C
;
_database_code_amcsd 0007339
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Mg Si O3'
_cell_length_a 4.780
_cell_length_b 4.933
_cell_length_c 6.902
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 162.747
_exptl_crystal_density_diffrn      4.097
_symmetry_space_group_name_H-M 'P b n m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,y,1/2-z'
  '-x,-y,1/2+z'
  '1/2+x,1/2-y,1/2+z'
  '1/2-x,1/2+y,1/2-z'
  '1/2-x,1/2+y,z'
  '1/2+x,1/2-y,-z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Mg   0.97400   0.06300   0.25000   0.00633
Si   0.00000   0.50000   0.00000   0.00633
O1   0.09600   0.47700   0.25000   0.01013
O2   0.69600   0.29100   0.05600   0.01013