data_[Nd12Er4Tm8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nd  1.1400  1.8500  1.2765
  Er  1.2400  1.7500  1.0300
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [17.8763]
_cell_length_b [7.2572]
_cell_length_c [6.2824]
_cell_angle_alpha [90.0000]
_cell_angle_beta [103.5622]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Nd3ErTm2]
_chemical_formula_sum '[Nd12 Er4 Tm8]'
_cell_volume [792.3072]
_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
[
  Nd  Nd0  8  0.1678  0.1252  0.0256  1.0
  Nd  Nd1  4  0.0000  0.1289  0.2500  1.0
  Er  Er2  4  0.0000  0.3787  0.7500  1.0
  Tm  Tm3  8  0.1659  0.3765  0.5281  1.0
]