data_K2Ag
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.1
_cell_length_b   8.1
_cell_length_c   8.22
_cell_angle_alpha   90.8
_cell_angle_beta   90.8
_cell_angle_gamma   31.83
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2Ag
_chemical_formula_sum   'K4 Ag2'
_cell_volume   284.79
_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  K2  1  0.33  0.0  0.81  1.0
  K  K3  1  0.82  0.0  0.7  1.0
  K  K4  1  0.22  0.0  0.35  1.0
  K  K5  1  0.96  0.0  0.25  1.0
  Ag  Ag0  1  0.09  0.0  0.66  1.0
  Ag  Ag1  1  0.58  0.0  0.52  1.0

data_K2Ag
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.44
_cell_length_b   8.1
_cell_length_c   8.22
_cell_angle_alpha   90.8
_cell_angle_beta   90.0
_cell_angle_gamma   105.92
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2Ag
_chemical_formula_sum   'K4 Ag2'
_cell_volume   284.79
_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  1  0.0  0.04  0.75  1.0
  K  K1  1  0.0  0.18  0.3  1.0
  K  K2  1  0.0  0.67  0.19  1.0
  K  K3  1  0.0  0.78  0.65  1.0
  Ag  Ag4  1  0.0  0.42  0.48  1.0
  Ag  Ag5  1  0.0  0.91  0.34  1.0

K K K K Ag Ag
K K K K Ag Ag 0 4 o o o 1 5 o o o 1 4 + o o 2 3 - o o 