data_[Nd8Mg16Ag8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nd  1.1400  1.8500  1.2765
  Mg  1.3100  1.5000  0.8600
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [16.9110]
_cell_length_b [8.1292]
_cell_length_c [5.7511]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [NdMg2Ag]
_chemical_formula_sum '[Nd8 Mg16 Ag8]'
_cell_volume [790.6193]
_cell_formula_units_Z [8]
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  4  0.1053  0.2500  0.7539  1
  Nd  Nd1  4  0.1399  0.7500  0.5499  1
  Mg  Mg2  8  0.0359  0.0550  0.2527  1
  Mg  Mg3  8  0.2149  0.5545  0.0488  1
  Ag  Ag4  4  0.0697  0.7500  0.0395  1
  Ag  Ag5  4  0.1813  0.2500  0.2607  1
]