data_MgMnBi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.47
_cell_length_b   6.47
_cell_length_c   6.47
_cell_angle_alpha   150.31
_cell_angle_beta   150.31
_cell_angle_gamma   42.49
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgMnBi
_chemical_formula_sum   'Mg1 Mn1 Bi1'
_cell_volume   66.29
_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
  Mg  Mg1  1  0.0  0.0  0.73  1.0
  Mn  Mn2  1  0.0  0.0  0.13  1.0
  Bi  Bi0  1  0.0  0.0  0.19  1.0

data_MgMnBi
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.69
_cell_length_b   4.69
_cell_length_c   6.47
_cell_angle_alpha   90.0
_cell_angle_beta   111.25
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   MgMnBi
_chemical_formula_sum   'Mg2 Mn2 Bi2'
_cell_volume   132.58
_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+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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
  Mg  Mg0  2  0.0  0.0  0.27  1.0
  Mn  Mn1  2  0.0  0.0  0.87  1.0
  Bi  Bi2  2  0.0  0.0  0.81  1.0

Mg Mn Bi