data_[Zn3Cr3Pb6O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Zn  1.6500  1.3500  0.8800
  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 [R3]
_cell_length_a [5.5571]
_cell_length_b [5.5571]
_cell_length_c [14.3026]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [ZnCr(PbO3)2]
_chemical_formula_sum '[Zn3 Cr3 Pb6 O18]'
_cell_volume [382.5143]
_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
[
  Zn  Zn0  3  0.0000  0.0000  0.3070  1
  Cr  Cr1  3  0.0000  0.0000  0.8182  1
  Pb  Pb2  3  0.0000  0.0000  0.0316  1
  Pb  Pb3  3  0.0000  0.0000  0.5334  1
  O  O4  9  0.0022  0.6242  0.0795  1
  O  O5  9  0.0327  0.4122  0.5776  1
]