data_[K2Si1Ag1F8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Si  1.9000  1.1000  0.5400
  Ag  1.9300  1.6000  1.0867
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P-3m1]
_cell_length_a [5.6117]
_cell_length_b [5.6117]
_cell_length_c [6.9998]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [164]
_chemical_formula_structural [K2SiAgF8]
_chemical_formula_sum '[K2 Si1 Ag1 F8]'
_cell_volume [190.9005]
_cell_formula_units_Z [1]
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  2  0.3333  0.6667  0.8381  1
  Si  Si1  1  0.0000  0.0000  0.0000  1
  Ag  Ag2  1  0.0000  0.0000  0.5000  1
  F  F3  6  0.1431  0.8569  0.1435  1
  F  F4  2  0.3333  0.6667  0.4801  1
]