data_[Ca6Zn4Ag18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ca  1.0000  1.8000  1.1400
  Zn  1.6500  1.3500  0.8800
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [4.6336]
_cell_length_b [10.0311]
_cell_length_c [13.1178]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Ca3Zn2Ag9]
_chemical_formula_sum '[Ca6 Zn4 Ag18]'
_cell_volume [609.7192]
_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
[
  Ca  Ca0  4  0.0000  0.0000  0.3074  1.0
  Ca  Ca1  2  0.0000  0.0000  0.0000  1.0
  Zn  Zn2  4  0.0000  0.2136  0.5000  1.0
  Ag  Ag3  8  0.0000  0.2748  0.1190  1.0
  Ag  Ag4  8  0.0000  0.3608  0.3259  1.0
  Ag  Ag5  2  0.0000  0.5000  0.0000  1.0
]