data_[Tb20Dy8Er2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Dy  1.2200  1.7500  1.1310
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [I4/m]
_cell_length_a [12.1151]
_cell_length_b [12.1151]
_cell_length_c [7.6635]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [87]
_chemical_formula_structural [Tb10Dy4Er]
_chemical_formula_sum '[Tb20 Dy8 Er2]'
_cell_volume [1124.8136]
_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  16  0.0994  0.2001  0.2496  1
  Tb  Tb1  4  0.0000  0.5000  0.2500  1
  Dy  Dy2  8  0.1004  0.7006  0.5000  1
  Er  Er3  2  0.0000  0.0000  0.0000  1
]