data_Ag2SnSe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.82
_cell_length_b   5.82
_cell_length_c   5.82
_cell_angle_alpha   138.34
_cell_angle_beta   138.34
_cell_angle_gamma   60.38
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ag2SnSe
_chemical_formula_sum   'Ag2 Sn1 Se1'
_cell_volume   86.31
_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
  Ag  Ag0  1  0.0  0.0  0.03  1.0
  Ag  Ag1  1  0.0  0.07  0.52  1.0
  Sn  Sn3  1  0.07  0.0  0.52  1.0
  Se  Se2  1  0.0  0.0  0.0  1.0

data_Ag2SnSe
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.14
_cell_length_b   4.14
_cell_length_c   5.82
_cell_angle_alpha   110.83
_cell_angle_beta   110.83
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ag2SnSe
_chemical_formula_sum   'Ag2 Sn1 Se1'
_cell_volume   86.31
_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
  Ag  Ag0  1  0.55  0.07  0.55  1.0
  Ag  Ag1  1  0.97  0.0  0.97  1.0
  Sn  Sn2  1  0.48  0.0  0.55  1.0
  Se  Se3  1  0.0  0.0  0.0  1.0

Ag Ag Sn Se