data_Sr2MgPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.28
_cell_length_b   4.28
_cell_length_c   9.52
_cell_angle_alpha   102.42
_cell_angle_beta   102.42
_cell_angle_gamma   59.38
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr2MgPt
_chemical_formula_sum   'Sr2 Mg1 Pt1'
_cell_volume   145.11
_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  0.0  0.0  0.89  1.0
  Sr  Sr3  1  0.07  0.0  0.33  1.0
  Mg  Mg0  1  0.0  0.0  0.0  1.0
  Pt  Pt1  1  0.54  0.0  0.61  1.0

data_Sr2MgPt
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.24
_cell_length_b   4.28
_cell_length_c   9.52
_cell_angle_alpha   102.42
_cell_angle_beta   90.0
_cell_angle_gamma   119.69
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr2MgPt
_chemical_formula_sum   'Sr2 Mg1 Pt1'
_cell_volume   145.11
_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  0.93  0.67  1.0
  Sr  Sr1  1  0.0  1.0  0.11  1.0
  Mg  Mg2  1  0.0  0.0  0.0  1.0
  Pt  Pt3  1  0.0  0.46  0.39  1.0

Sr Sr Mg Pt
Sr Sr Mg Pt 0 2 o o + 0 3 - o o 1 2 o o o 1 3 o o o 