data_[Na8Zn12Se16O48]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Zn  1.6500  1.3500  0.8800
  Se  2.5500  1.1500  1.0133
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [11.9084]
_cell_length_b [6.6836]
_cell_length_c [14.5151]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.4322]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Na2Zn3(SeO3)4]
_chemical_formula_sum '[Na8 Zn12 Se16 O48]'
_cell_volume [1155.2409]
_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
[
  Na  Na0  8  0.1261  0.3628  0.4633  1
  Zn  Zn1  8  0.0053  0.1859  0.8667  1
  Zn  Zn2  4  0.0000  0.2807  0.2500  1
  Se  Se3  8  0.1442  0.1734  0.0680  1
  Se  Se4  8  0.1901  0.3947  0.7315  1
  O  O5  8  0.0269  0.1073  0.1392  1
  O  O6  8  0.0722  0.2965  0.9814  1
  O  O7  8  0.1031  0.4183  0.6357  1
  O  O8  8  0.1297  0.1820  0.7778  1
  O  O9  8  0.1354  0.4142  0.2995  1
  O  O10  8  0.1759  0.0525  0.5247  1
]