data_[Na4Ag8Bi10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ag  1.9300  1.6000  1.0867
  Bi  2.0200  1.6000  1.0350
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [13.5121]
_cell_length_b [6.7675]
_cell_length_c [9.3807]
_cell_angle_alpha [90.0000]
_cell_angle_beta [133.5996]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na2Ag4Bi5]
_chemical_formula_sum '[Na4 Ag8 Bi10]'
_cell_volume [621.1994]
_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
[
  Na  Na0  4  0.1987  0.5000  0.7017  1.0
  Ag  Ag1  4  0.2498  0.5000  0.0803  1.0
  Ag  Ag2  4  0.2498  0.0000  0.5750  1.0
  Bi  Bi3  8  0.0004  0.2489  0.1802  1.0
  Bi  Bi4  2  0.0000  0.0000  0.5000  1.0
]