data_[Na8Fe2O10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Fe  1.8300  1.4000  0.8525
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P1]
_cell_length_a [5.7221]
_cell_length_b [5.7506]
_cell_length_c [8.7142]
_cell_angle_alpha [108.1081]
_cell_angle_beta [102.9286]
_cell_angle_gamma [100.4718]
_symmetry_Int_Tables_number [1]
_chemical_formula_structural [Na4FeO5]
_chemical_formula_sum '[Na8 Fe2 O10]'
_cell_volume [255.6750]
_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
[
  Na  Na0  1  0.0890  0.1770  0.6946  1.0
  Na  Na1  1  0.1972  0.3951  0.3997  1.0
  Na  Na2  1  0.2954  0.6001  0.1051  1.0
  Na  Na3  1  0.4094  0.8203  0.8025  1.0
  Na  Na4  1  0.6016  0.1803  0.1961  1.0
  Na  Na5  1  0.7113  0.3951  0.9003  1.0
  Na  Na6  1  0.7931  0.6051  0.6074  1.0
  Na  Na7  1  0.9044  0.8112  0.3045  1.0
  Fe  Fe8  1  0.0319  0.0020  0.0287  1.0
  Fe  Fe9  1  0.4908  0.0042  0.4908  1.0
  O  O10  1  0.0573  0.6994  0.8876  1.0
  O  O11  1  0.2127  0.8203  0.5276  1.0
  O  O12  1  0.2769  0.0029  0.2774  1.0
  O  O13  1  0.2823  0.1725  0.9691  1.0
  O  O14  1  0.4476  0.3056  0.6178  1.0
  O  O15  1  0.5458  0.6996  0.3839  1.0
  O  O16  1  0.6893  0.0073  0.6926  1.0
  O  O17  1  0.7327  0.8247  0.0354  1.0
  O  O18  1  0.7751  0.1753  0.4582  1.0
  O  O19  1  0.9563  0.3021  0.1208  1.0
]