data_[Mg24Ni8Ag4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  Ni  1.9100  1.3500  0.7400
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [8.2509]
_cell_length_b [8.6156]
_cell_length_c [9.3013]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Mg6Ni2Ag]
_chemical_formula_sum '[Mg24 Ni8 Ag4]'
_cell_volume [661.1967]
_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
[
  Mg  Mg0  8  0.0000  0.2973  0.3292  1
  Mg  Mg1  8  0.1851  0.2820  0.0000  1
  Mg  Mg2  8  0.2042  0.0000  0.2465  1
  Ni  Ni3  4  0.0000  0.5000  0.1253  1
  Ni  Ni4  4  0.1499  0.5000  0.5000  1
  Ag  Ag5  2  0.0000  0.0000  0.0000  1
  Ag  Ag6  2  0.0000  0.0000  0.5000  1
]