data_Sr2AgSe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.43
_cell_length_b   4.43
_cell_length_c   6.49
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   94.04
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr2AgSe
_chemical_formula_sum   'Sr2 Ag1 Se1'
_cell_volume   127.17
_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
  Sr  Sr2  1  0.02  0.0  0.79  1.0
  Sr  Sr3  1  0.0  0.0  0.1  1.0
  Ag  Ag0  1  0.02  0.0  0.01  1.0
  Se  Se1  1  0.0  0.0  0.84  1.0

data_Sr2AgSe
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.43
_cell_length_b   4.43
_cell_length_c   6.49
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   94.04
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr2AgSe
_chemical_formula_sum   'Sr2 Ag1 Se1'
_cell_volume   127.17
_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
  Sr  Sr0  1  0.0  0.0  0.1  1.0
  Sr  Sr1  1  0.02  0.0  0.79  1.0
  Ag  Ag2  1  0.02  0.0  0.01  1.0
  Se  Se3  1  0.0  0.0  0.84  1.0

Sr Sr Ag Se
Sr Sr Ag Se 0 3 o o o 1 2 o o o 