data_[Tb12Dy4Ho4Er4]
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
  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 [19.7592]
_cell_length_b [5.6746]
_cell_length_c [6.8135]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.1138]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tb3DyHoEr]
_chemical_formula_sum '[Tb12 Dy4 Ho4 Er4]'
_cell_volume [763.9713]
_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  0.0191  0.5000  0.7502  1
  Tb  Tb1  4  0.1628  0.0000  0.7502  1
  Tb  Tb2  4  0.2188  0.0000  0.2517  1
  Dy  Dy3  4  0.0561  0.0000  0.2508  1
  Ho  Ho4  4  0.1475  0.5000  0.0284  1
  Er  Er5  4  0.1469  0.5000  0.4719  1
]