data_SrBi2Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.39
_cell_length_b   4.39
_cell_length_c   6.99
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrBi2Pb
_chemical_formula_sum   'Sr1 Bi2 Pb1'
_cell_volume   134.51
_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  Sr3  1  0.0  0.0  0.0  1.0
  Bi  Bi0  1  0.19  0.19  0.82  1.0
  Bi  Bi1  1  0.19  0.19  0.17  1.0
  Pb  Pb2  1  0.0  0.0  0.49  1.0

data_SrBi2Pb
_symmetry_space_group_name_H-M   Amm2
_cell_length_a   6.99
_cell_length_b   6.2
_cell_length_c   6.2
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   38
_chemical_formula_structural   SrBi2Pb
_chemical_formula_sum   'Sr2 Bi4 Pb2'
_cell_volume   269.02
_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, y+1/2, z+1/2'
  6  '-x, -y+1/2, z+1/2'
  7  '-x, y+1/2, z+1/2'
  8  'x, -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  0.0  1.0
  Bi  Bi1  4  0.18  0.0  0.19  1.0
  Pb  Pb2  2  0.5  0.0  0.0  1.0

Sr Bi Bi Pb