data_[K4Ag2Se4O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Ag  1.9300  1.6000  1.0867
  Se  2.5500  1.1500  1.0133
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.1853]
_cell_length_b [5.5921]
_cell_length_c [7.9315]
_cell_angle_alpha [90.0000]
_cell_angle_beta [120.7198]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K2Ag(SeO3)2]
_chemical_formula_sum '[K4 Ag2 Se4 O12]'
_cell_volume [464.6208]
_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
[
  K  K0  4  0.2239  0.5000  0.2656  1.0
  Ag  Ag1  2  0.0000  0.5000  0.5000  1.0
  Se  Se2  4  0.0164  0.0000  0.8064  1.0
  O  O3  8  0.0745  0.2479  0.7464  1.0
  O  O4  4  0.1448  0.0000  0.3410  1.0
]