data_[Ca3Nd6Bi3O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ca  1.0000  1.8000  1.1400
  Nd  1.1400  1.8500  1.2765
  Bi  2.0200  1.6000  1.0350
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [6.0212]
_cell_length_b [6.0212]
_cell_length_c [15.4886]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [CaNd2BiO6]
_chemical_formula_sum '[Ca3 Nd6 Bi3 O18]'
_cell_volume [486.3019]
_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
[
  Ca  Ca0  3  0.0000  0.0000  0.8067  1.0
  Nd  Nd1  3  0.0000  0.0000  0.0285  1.0
  Nd  Nd2  3  0.0000  0.0000  0.5289  1.0
  Bi  Bi3  3  0.0000  0.0000  0.3126  1.0
  O  O4  9  0.0083  0.7219  0.4126  1.0
  O  O5  9  0.0159  0.3010  0.9157  1.0
]