data_[La20Er4Tm8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  La  1.1000  1.9500  1.1720
  Er  1.2400  1.7500  1.0300
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [5.6470]
_cell_length_b [12.1037]
_cell_length_c [16.5040]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [La5ErTm2]
_chemical_formula_sum '[La20 Er4 Tm8]'
_cell_volume [1128.0430]
_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
[
  La  La0  8  0.0000  0.0745  0.0946  1
  La  La1  8  0.0000  0.3836  0.0513  1
  La  La2  4  0.0000  0.4697  0.7500  1
  Er  Er3  4  0.0000  0.2519  0.2500  1
  Tm  Tm4  8  0.0000  0.2265  0.6380  1
]