data_[Tb3Er3Bi6O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Er  1.2400  1.7500  1.0300
  Bi  2.0200  1.6000  1.0350
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [6.0258]
_cell_length_b [6.0258]
_cell_length_c [15.2551]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [TbEr(BiO3)2]
_chemical_formula_sum '[Tb3 Er3 Bi6 O18]'
_cell_volume [479.7049]
_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
[
  Tb  Tb0  3  0.0000  0.0000  0.8077  1.0
  Er  Er1  3  0.0000  0.0000  0.3095  1.0
  Bi  Bi2  3  0.0000  0.0000  0.0217  1.0
  Bi  Bi3  3  0.0000  0.0000  0.5222  1.0
  O  O4  9  0.0326  0.7410  0.4164  1.0
  O  O5  9  0.0355  0.4066  0.5839  1.0
]