data_[Tb8Sm6Er8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Sm  1.1700  1.8500  1.2290
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [10.5616]
_cell_length_b [5.6688]
_cell_length_c [12.0020]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [Tb4Sm3Er4]
_chemical_formula_sum '[Tb8 Sm6 Er8]'
_cell_volume [718.5735]
_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  4  0.2121  0.0000  0.7525  1
  Tb  Tb1  2  0.0000  0.0000  0.9586  1
  Tb  Tb2  2  0.5000  0.0000  0.8879  1
  Sm  Sm3  4  0.2916  0.0000  0.4082  1
  Sm  Sm4  2  0.0000  0.0000  0.2545  1
  Er  Er5  4  0.2966  0.0000  0.1029  1
  Er  Er6  2  0.0000  0.0000  0.5548  1
  Er  Er7  2  0.5000  0.0000  0.6156  1
]