data_[Si8Bi4O24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Si  1.9000  1.1000  0.5400
  Bi  2.0200  1.6000  1.0350
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [10.2402]
_cell_length_b [9.5719]
_cell_length_c [5.4626]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.4745]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Si2BiO6]
_chemical_formula_sum '[Si8 Bi4 O24]'
_cell_volume [504.8030]
_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
[
  Si  Si0  8  0.2019  0.4233  0.7319  1.0
  Bi  Bi1  4  0.0000  0.1293  0.7500  1.0
  O  O2  8  0.1251  0.0639  0.1599  1.0
  O  O3  8  0.1480  0.4838  0.9644  1.0
  O  O4  8  0.1544  0.2615  0.6739  1.0
]