data_[Al4Zn8Ag20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Al  1.6100  1.2500  0.6750
  Zn  1.6500  1.3500  0.8800
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [I4/mcm]
_cell_length_a [7.0831]
_cell_length_b [7.0831]
_cell_length_c [10.7823]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [140]
_chemical_formula_structural [AlZn2Ag5]
_chemical_formula_sum '[Al4 Zn8 Ag20]'
_cell_volume [540.9579]
_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
[
  Al  Al0  4  0.0000  0.0000  0.2500  1
  Zn  Zn1  8  0.1411  0.6411  0.5000  1
  Ag  Ag2  16  0.1528  0.3472  0.3422  1
  Ag  Ag3  4  0.0000  0.0000  0.0000  1
]