data_[Na2Mg2Fe10O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Mg  1.3100  1.5000  0.8600
  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 [10.5444]
_cell_length_b [6.0347]
_cell_length_c [6.4910]
_cell_angle_alpha [90.0000]
_cell_angle_beta [123.9690]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [NaMgFe5O8]
_chemical_formula_sum '[Na2 Mg2 Fe10 O16]'
_cell_volume [342.5456]
_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  2  0.0000  0.5000  0.0000  1
  Mg  Mg1  2  0.0000  0.0000  0.0000  1
  Fe  Fe2  4  0.1325  0.0000  0.4771  1
  Fe  Fe3  4  0.2500  0.2500  0.0000  1
  Fe  Fe4  2  0.0000  0.5000  0.5000  1
  O  O5  8  0.0105  0.2515  0.7410  1
  O  O6  4  0.2376  0.5000  0.1741  1
  O  O7  4  0.2395  0.0000  0.2263  1
]