data_[Tb6Er6Tm8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Er  1.2400  1.7500  1.0300
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [3.6275]
_cell_length_b [13.0670]
_cell_length_c [13.0803]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [Tb3Er3Tm4]
_chemical_formula_sum '[Tb6 Er6 Tm8]'
_cell_volume [620.0116]
_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  4  0.5000  0.1730  0.4997  1
  Tb  Tb1  2  0.5000  0.0000  0.8272  1
  Er  Er2  4  0.0000  0.2487  0.2493  1
  Er  Er3  2  0.5000  0.0000  0.1732  1
  Tm  Tm4  4  0.0000  0.1251  0.0009  1
  Tm  Tm5  2  0.0000  0.0000  0.3743  1
  Tm  Tm6  2  0.0000  0.0000  0.6253  1
]