data_Si2Ag
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.59
_cell_length_b   4.59
_cell_length_c   5.59
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Si2Ag
_chemical_formula_sum   'Si4 Ag2'
_cell_volume   102.0
_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
  Si  Si2  1  0.0  0.0  0.0  1.0
  Si  Si3  1  0.0  0.0  0.79  1.0
  Si  Si4  1  0.3  0.33  0.19  1.0
  Si  Si5  1  0.0  0.65  0.4  1.0
  Ag  Ag0  1  0.3  0.33  0.4  1.0
  Ag  Ag1  1  0.0  0.65  0.19  1.0

data_Si2Ag
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.59
_cell_length_b   4.59
_cell_length_c   5.59
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Si2Ag
_chemical_formula_sum   'Si4 Ag2'
_cell_volume   102.0
_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
  Si  Si0  1  0.0  0.0  0.0  1.0
  Si  Si1  1  0.0  0.0  0.79  1.0
  Si  Si2  1  0.0  0.65  0.4  1.0
  Si  Si3  1  0.3  0.33  0.19  1.0
  Ag  Ag4  1  0.0  0.65  0.19  1.0
  Ag  Ag5  1  0.3  0.33  0.4  1.0

Si Si Si Si Ag Ag
Si Si Si Si Ag Ag 0 1 o o - 2 4 o o o 3 5 o o o 