data_[Ca8Ag8Pb4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ca  1.0000  1.8000  1.1400
  Ag  1.9300  1.6000  1.0867
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [10.5967]
_cell_length_b [5.9648]
_cell_length_c [8.6956]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.7029]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Ca2Ag2Pb]
_chemical_formula_sum '[Ca8 Ag8 Pb4]'
_cell_volume [526.4379]
_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
[
  Ca  Ca0  8  0.1545  0.3508  0.1484  1.0
  Ag  Ag1  8  0.1341  0.1368  0.4890  1.0
  Pb  Pb2  4  0.0000  0.2091  0.7500  1.0
]