data_[Ca3Tm6Pb3O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ca  1.0000  1.8000  1.1400
  Tm  1.2500  1.7500  1.0950
  Pb  2.3300  1.8000  1.1225
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [5.7457]
_cell_length_b [5.7457]
_cell_length_c [15.2137]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [CaTm2PbO6]
_chemical_formula_sum '[Ca3 Tm6 Pb3 O18]'
_cell_volume [434.9598]
_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  0.1976  1.0
  Tm  Tm1  3  0.0000  0.0000  0.4786  1.0
  Tm  Tm2  3  0.0000  0.0000  0.9790  1.0
  Pb  Pb3  3  0.0000  0.0000  0.6879  1.0
  O  O4  9  0.0233  0.7256  0.5837  1.0
  O  O5  9  0.0297  0.3621  0.7480  1.0
]