data_[Tb20Dy8Er4Tm4]
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
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [5.5587]
_cell_length_b [19.8050]
_cell_length_c [10.5215]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Tb5Dy2ErTm]
_chemical_formula_sum '[Tb20 Dy8 Er4 Tm4]'
_cell_volume [1158.3162]
_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  0.0000  0.0178  0.0208  1
  Tb  Tb1  4  0.0000  0.2806  0.3105  1
  Tb  Tb2  4  0.0000  0.2998  0.7076  1
  Tb  Tb3  4  0.0000  0.3865  0.0218  1
  Tb  Tb4  4  0.0000  0.4807  0.7405  1
  Dy  Dy5  4  0.0000  0.1109  0.7371  1
  Dy  Dy6  4  0.0000  0.1137  0.3155  1
  Er  Er7  4  0.0000  0.4112  0.4591  1
  Tm  Tm8  4  0.0000  0.1992  0.0111  1
]