data_[K2Cr2Fe4O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Cr  1.6600  1.4000  0.9400
  Fe  1.8300  1.4000  0.8525
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [8.2071]
_cell_length_b [5.4381]
_cell_length_c [7.4388]
_cell_angle_alpha [90.0000]
_cell_angle_beta [96.5300]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [KCr(FeO4)2]
_chemical_formula_sum '[K2 Cr2 Fe4 O16]'
_cell_volume [329.8511]
_cell_formula_units_Z [2]
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
[
  K  K0  2  0.0000  0.0000  0.5000  1
  Cr  Cr1  2  0.0000  0.0000  0.0000  1
  Fe  Fe2  4  0.1152  0.5000  0.7896  1
  O  O3  8  0.0007  0.2466  0.8076  1
  O  O4  4  0.1892  0.5000  0.5978  1
  O  O5  4  0.2391  0.0000  0.0344  1
]