data_[Tb6Pr18Er4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Pr  1.1300  1.8500  1.0600
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [P6_3/m]
_cell_length_a [9.1135]
_cell_length_b [9.1135]
_cell_length_c [14.0712]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [176]
_chemical_formula_structural [Tb3Pr9Er2]
_chemical_formula_sum '[Tb6 Pr18 Er4]'
_cell_volume [1012.1242]
_cell_formula_units_Z [2]
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  6  0.0802  0.2505  0.2500  1
  Pr  Pr1  12  0.1323  0.7274  0.5412  1
  Pr  Pr2  6  0.0781  0.4813  0.7500  1
  Er  Er3  4  0.3333  0.6667  0.1429  1
]