data_global
_chemical_name_mineral 'Tetrataenite'
loop_
_publ_author_name
'Clarke R S'
'Scott E R D'
_journal_name_full 'American Mineralogist'
_journal_volume 65 
_journal_year 1980
_journal_page_first 624
_journal_page_last 630
_publ_section_title
;
 Tetrataenite - ordered FeNi, a new mineral in meteorites
;
_database_code_amcsd 0000787
_chemical_compound_source 'Cape Town iron meteorite'
_chemical_formula_sum 'Fe Ni'
_cell_length_a 2.533
_cell_length_b 2.533
_cell_length_c 3.582
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 22.982
_exptl_crystal_density_diffrn      8.276
_symmetry_space_group_name_H-M 'P 4/m m m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-y,-x,z'
  'y,x,-z'
  'y,-x,-z'
  '-y,x,z'
  'x,-y,z'
  '-x,y,-z'
  'x,y,-z'
  '-x,-y,z'
  'y,x,z'
  '-y,-x,-z'
  '-y,x,-z'
  'y,-x,z'
  '-x,y,z'
  'x,-y,-z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Fe   0.00000   0.00000   0.00000
Ni   0.50000   0.50000   0.50000