data_[Sr6Mg4Bi8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Mg  1.3100  1.5000  0.8600
  Bi  2.0200  1.6000  1.0350
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [14.5722]
_cell_length_b [4.6853]
_cell_length_c [10.2787]
_cell_angle_alpha [90.0000]
_cell_angle_beta [118.1935]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Sr3(MgBi2)2]
_chemical_formula_sum '[Sr6 Mg4 Bi8]'
_cell_volume [618.5173]
_cell_formula_units_Z [2]
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  4  0.1244  0.5000  0.7038  1
  Sr  Sr1  2  0.0000  0.0000  0.0000  1
  Mg  Mg2  4  0.1914  0.5000  0.3612  1
  Bi  Bi3  4  0.0812  0.0000  0.3979  1
  Bi  Bi4  4  0.1949  0.5000  0.0764  1
]