data_global
_chemical_name_mineral 'Cohenite'
loop_
_publ_author_name
'Shimura S'
_journal_name_full 'Proceedings of the Japan Academy'
_journal_volume 6 
_journal_year 1930
_journal_page_first 269
_journal_page_last 271
_publ_section_title
;
 A study on the structure of cementite
 _cod_database_code 1010931
;
_database_code_amcsd 0017653
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Fe2 C'
_cell_length_a 4.511
_cell_length_b 5.046
_cell_length_c 6.738
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 153.374
_exptl_crystal_density_diffrn     10.715
_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
Fe1   0.20500   0.19870   0.00000
Fe2   0.05500   0.43250   0.31560
C   0.18100   0.41500   0.00000