data_[Ho4Er16Ag4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ho  1.2300  1.7500  1.0410
  Er  1.2400  1.7500  1.0300
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [5.3707]
_cell_length_b [20.6744]
_cell_length_c [6.3586]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [HoEr4Ag]
_chemical_formula_sum '[Ho4 Er16 Ag4]'
_cell_volume [706.0406]
_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
[
  Ho  Ho0  4  0.0000  0.1353  0.7854  1
  Er  Er1  4  0.0000  0.0657  0.2890  1
  Er  Er2  4  0.0000  0.2570  0.4134  1
  Er  Er3  4  0.0000  0.3234  0.9257  1
  Er  Er4  4  0.0000  0.4649  0.1217  1
  Ag  Ag5  4  0.0000  0.3973  0.5314  1
]