data_[K8Sn4O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Sn  1.9600  1.4500  0.8300
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [5.7662]
_cell_length_b [10.3242]
_cell_length_c [7.0068]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [K2SnO3]
_chemical_formula_sum '[K8 Sn4 O12]'
_cell_volume [417.1261]
_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
[
  K  K0  8  0.2334  0.5878  0.6107  1
  Sn  Sn1  4  0.2332  0.2500  0.6570  1
  O  O2  8  0.0068  0.6184  0.2273  1
  O  O3  4  0.1638  0.2500  0.3853  1
]