data_[Cs12K20Na8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  K  0.8200  2.2000  1.5200
  Na  0.9300  1.8000  1.1600
]
_symmetry_space_group_name_H-M [Ibam]
_cell_length_a [15.9262]
_cell_length_b [22.0319]
_cell_length_c [8.8946]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [72]
_chemical_formula_structural [Cs3K5Na2]
_chemical_formula_sum '[Cs12 K20 Na8]'
_cell_volume [3120.9615]
_cell_formula_units_Z [4]
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
[
  Cs  Cs0  8  0.2156  0.1737  0.0000  1
  Cs  Cs1  4  0.0000  0.0000  0.2500  1
  K  K2  8  0.0000  0.3101  0.2500  1
  K  K3  8  0.2239  0.4367  0.0000  1
  K  K4  4  0.0000  0.5000  0.2500  1
  Na  Na5  8  0.0751  0.1688  0.5000  1
]