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 [Cmcm]
_cell_length_a [10.4788]
_cell_length_b [7.2299]
_cell_length_c [5.8296]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [K2SnO3]
_chemical_formula_sum '[K8 Sn4 O12]'
_cell_volume [441.6567]
_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  0.1626  0.3606  0.7500  1.0
  Sn  Sn1  4  0.0000  0.0905  0.2500  1.0
  O  O2  8  0.1302  0.0000  0.0000  1.0
  O  O3  4  0.0000  0.3602  0.2500  1.0
]