data_global
_chemical_name_mineral 'Cohenite'
loop_
_publ_author_name
'Hendricks B S'
_journal_name_full 'Zeitschrift fur Kristallographie'
_journal_volume 74 
_journal_year 1930
_journal_page_first 534
_journal_page_last 545
_publ_section_title
;
 The crystal structure of cementite
 Note: position of C was incorrectly guessed in this paper
;
_database_code_amcsd 0010504
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Fe3 C'
_cell_length_a 4.518
_cell_length_b 5.069
_cell_length_c 6.736
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 154.266
_exptl_crystal_density_diffrn      7.731
_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   0.34000   0.17000   0.06500
Fe2  -0.16000   0.05000   0.25000
C   0.00000   0.00000   0.00000