data_[Nd8Er4Ag4]
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
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [3.7495]
_cell_length_b [12.4203]
_cell_length_c [10.2366]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Nd2ErAg]
_chemical_formula_sum '[Nd8 Er4 Ag4]'
_cell_volume [476.7220]
_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  0.3692  0.5475  1.0
  Er  Er1  4  0.0000  0.0580  0.7500  1.0
  Ag  Ag2  4  0.0000  0.2464  0.2500  1.0
]