data_[Tb12Ho4Er8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Ho  1.2300  1.7500  1.0410
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [16.8486]
_cell_length_b [5.5934]
_cell_length_c [9.6225]
_cell_angle_alpha [90.0000]
_cell_angle_beta [124.7824]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tb3HoEr2]
_chemical_formula_sum '[Tb12 Ho4 Er8]'
_cell_volume [744.8062]
_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  4  0.0005  0.0000  0.3326  1
  Tb  Tb1  4  0.1250  0.5000  0.6282  1
  Tb  Tb2  4  0.2493  0.5000  0.4200  1
  Ho  Ho3  4  0.1249  0.0000  0.1219  1
  Er  Er4  4  0.0001  0.5000  0.1660  1
  Er  Er5  4  0.2495  0.5000  0.0858  1
]