data_[Nd16Er6Mg2]
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
  Mg  1.3100  1.5000  0.8600
]
_symmetry_space_group_name_H-M [I-42m]
_cell_length_a [8.6917]
_cell_length_b [8.6917]
_cell_length_c [11.5712]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [121]
_chemical_formula_structural [Nd8Er3Mg]
_chemical_formula_sum '[Nd16 Er6 Mg2]'
_cell_volume [874.1580]
_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
[
  Nd  Nd0  8  0.1275  0.1275  0.2523  1
  Nd  Nd1  8  0.2478  0.2478  0.5119  1
  Er  Er2  4  0.0000  0.5000  0.2500  1
  Er  Er3  2  0.0000  0.0000  0.5000  1
  Mg  Mg4  2  0.0000  0.0000  0.0000  1
]