data_[Nd16Ho4Er4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nd  1.1400  1.8500  1.2765
  Ho  1.2300  1.7500  1.0410
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [Imma]
_cell_length_a [5.8375]
_cell_length_b [22.3839]
_cell_length_c [6.1105]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [Nd4HoEr]
_chemical_formula_sum '[Nd16 Ho4 Er4]'
_cell_volume [798.4353]
_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  0.0000  0.0848  0.4540  1.0
  Nd  Nd1  8  0.0000  0.1698  0.9326  1.0
  Ho  Ho2  4  0.0000  0.0000  0.0000  1.0
  Er  Er3  4  0.0000  0.2500  0.4208  1.0
]