data_SrMgAg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.51
_cell_length_b   6.49
_cell_length_c   3.73
_cell_angle_alpha   73.66
_cell_angle_beta   72.99
_cell_angle_gamma   33.36
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrMgAg
_chemical_formula_sum   'Sr1 Mg1 Ag1'
_cell_volume   82.68
_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  0.61  0.67  0.05  1.0
  Mg  Mg1  1  0.61  0.67  0.48  1.0
  Ag  Ag0  1  0.61  0.67  0.34  1.0

data_SrMgAg
_symmetry_space_group_name_H-M   Imm2
_cell_length_a   3.73
_cell_length_b   11.88
_cell_length_c   3.73
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   44
_chemical_formula_structural   SrMgAg
_chemical_formula_sum   'Sr2 Mg2 Ag2'
_cell_volume   165.39
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-x, -y, z'
  3  '-x, y, z'
  4  'x, -y, z'
  5  'x+1/2, y+1/2, z+1/2'
  6  '-x+1/2, -y+1/2, z+1/2'
  7  '-x+1/2, y+1/2, z+1/2'
  8  'x+1/2, -y+1/2, z+1/2'
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  2  0.0  0.0  0.66  1.0
  Mg  Mg1  2  0.0  0.0  0.1  1.0
  Ag  Ag2  2  0.0  0.0  0.95  1.0

Sr Mg Ag