data_[Ho12Er4Ag2]
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 [Cmmm]
_cell_length_a [9.1518]
_cell_length_b [17.0487]
_cell_length_c [3.5282]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [Ho6Er2Ag]
_chemical_formula_sum '[Ho12 Er4 Ag2]'
_cell_volume [550.4902]
_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
[
  Ho  Ho0  8  0.1771  0.1611  0.0000  1
  Ho  Ho1  4  0.2069  0.5000  0.5000  1
  Er  Er2  4  0.0000  0.3165  0.5000  1
  Ag  Ag3  2  0.0000  0.0000  0.0000  1
]