data_global
_chemical_name_mineral 'Cuprospinel'
loop_
_publ_author_name
'Prince E'
'Treuting R G'
_journal_name_full 'Acta Crystallographica'
_journal_volume 9 
_journal_year 1956
_journal_page_first 1025
_journal_page_last 1028
_publ_section_title
;
 The structure of tetragonal copper ferrite
 Note: cell extrapolated from tetrahedra description
;
_database_code_amcsd 0009195
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Cu Fe2 O4'
_chemical_formula_sum ''
_cell_length_a 5.8
_cell_length_b 5.8
_cell_length_c 8.73
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 293.677
_exptl_crystal_density_diffrn      5.411
_symmetry_space_group_name_H-M 'I 41/a m d'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,1/2+z'
  '1/4-y,3/4-x,1/4+z'
  '3/4-y,1/4-x,3/4+z'
  '1/4+y,3/4+x,1/4-z'
  '3/4+y,1/4+x,3/4-z'
  '1/4+y,3/4-x,1/4-z'
  '3/4+y,1/4-x,3/4-z'
  '1/4-y,3/4+x,1/4+z'
  '3/4-y,1/4+x,3/4+z'
  '1/2+x,-y,1/2+z'
  '+x,1/2-y,+z'
  '1/2-x,y,1/2-z'
  '-x,1/2+y,-z'
  '1/2+x,y,1/2-z'
  '+x,1/2+y,-z'
  '1/2-x,-y,1/2+z'
  '-x,1/2-y,+z'
  '1/4+y,1/4+x,3/4+z'
  '3/4+y,3/4+x,1/4+z'
  '1/4-y,1/4-x,3/4-z'
  '3/4-y,3/4-x,1/4-z'
  '1/4-y,1/4+x,3/4-z'
  '3/4-y,3/4+x,1/4-z'
  '1/4+y,1/4-x,3/4+z'
  '3/4+y,3/4-x,1/4+z'
  '-x,y,z'
  '1/2-x,1/2+y,1/2+z'
  'x,-y,-z'
  '1/2+x,1/2-y,1/2-z'
  '-x,-y,-z'
  '1/2-x,1/2-y,1/2-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
CuB   0.00000   0.00000   0.50000   0.50000
FeB   0.00000   0.00000   0.50000   0.50000
FeA   0.00000   0.75000   0.12500   1.00000
O   0.00000   0.01600   0.25000   1.00000

