data_[Na3Cr6Pb3O24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Cr  1.6600  1.4000  0.9400
  Pb  2.3300  1.8000  1.1225
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [6.0263]
_cell_length_b [6.0263]
_cell_length_c [18.0666]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [NaCr2PbO8]
_chemical_formula_sum '[Na3 Cr6 Pb3 O24]'
_cell_volume [568.2101]
_cell_formula_units_Z [3]
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  3  0.0000  0.0000  0.0000  1.0
  Cr  Cr1  6  0.0000  0.0000  0.2178  1.0
  Pb  Pb2  3  -0.0000  -0.0000  0.5000  1.0
  O  O3  18  0.0266  0.5133  0.9139  1.0
  O  O4  6  0.0000  0.0000  0.1278  1.0
]