data_[Tb4Er2Tm12]
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 [P4_2/mnm]
_cell_length_a [10.5605]
_cell_length_b [10.5605]
_cell_length_c [4.9103]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [136]
_chemical_formula_structural [Tb2ErTm6]
_chemical_formula_sum '[Tb4 Er2 Tm12]'
_cell_volume [547.6173]
_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  0.1669  0.8331  0.5000  1.0
  Er  Er1  2  0.0000  0.0000  0.0000  1.0
  Tm  Tm2  8  0.0007  0.6660  0.0000  1.0
  Tm  Tm3  4  0.1671  0.1671  0.5000  1.0
]