data_[Tb4Y8Er8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Y  1.2200  1.8000  1.0400
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [14.5303]
_cell_length_b [7.1665]
_cell_length_c [6.1254]
_cell_angle_alpha [90.0000]
_cell_angle_beta [98.0524]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [Tb(YEr)2]
_chemical_formula_sum '[Tb4 Y8 Er8]'
_cell_volume [631.5606]
_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  0.3018  0.1246  0.8500  1.0
  Y  Y1  4  0.1004  0.1249  0.1183  1.0
  Y  Y2  4  0.3013  0.6254  0.8526  1.0
  Er  Er3  4  0.1003  0.6250  0.1177  1.0
  Er  Er4  4  0.4997  0.1249  0.2493  1.0
]