data_[Tb20Nd8Tm12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Nd  1.1400  1.8500  1.2765
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [Ibam]
_cell_length_a [9.3645]
_cell_length_b [21.6735]
_cell_length_c [6.7790]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [72]
_chemical_formula_structural [Tb5Nd2Tm3]
_chemical_formula_sum '[Tb20 Nd8 Tm12]'
_cell_volume [1375.8741]
_cell_formula_units_Z [4]
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  8  0.0000  0.2504  0.2500  1
  Tb  Tb1  8  0.0902  0.3750  0.0000  1
  Tb  Tb2  4  0.0000  0.5000  0.2500  1
  Nd  Nd3  8  0.1024  0.8759  0.0000  1
  Tm  Tm4  8  0.2492  0.1228  0.0000  1
  Tm  Tm5  4  0.0000  0.0000  0.2500  1
]