data_K2SiAg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.63
_cell_length_b   3.73
_cell_length_c   9.99
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2SiAg
_chemical_formula_sum   'K2 Si1 Ag1'
_cell_volume   135.4
_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  K1  1  0.0  0.0  0.78  1.0
  K  K2  1  0.82  0.87  0.67  1.0
  Si  Si3  1  0.0  0.0  0.14  1.0
  Ag  Ag0  1  0.82  0.87  0.4  1.0

data_K2SiAg
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.63
_cell_length_b   3.73
_cell_length_c   9.99
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2SiAg
_chemical_formula_sum   'K2 Si1 Ag1'
_cell_volume   135.4
_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  1  0.0  0.0  0.78  1.0
  K  K1  1  0.82  0.87  0.67  1.0
  Si  Si2  1  0.0  0.0  0.14  1.0
  Ag  Ag3  1  0.82  0.87  0.4  1.0

K K Si Ag
K K Si Ag 0 1 - - o 1 3 o o o 2 3 - - o 