data_MgCrSn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.1
_cell_length_b   6.97
_cell_length_c   2.97
_cell_angle_alpha   80.24
_cell_angle_beta   75.46
_cell_angle_gamma   24.31
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgCrSn
_chemical_formula_sum   'Mg1 Cr1 Sn1'
_cell_volume   57.87
_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  0.87  0.3  0.72  1.0
  Cr  Cr0  1  0.87  0.3  0.43  1.0
  Sn  Sn2  1  0.87  0.3  0.72  1.0

data_MgCrSn
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.75
_cell_length_b   13.44
_cell_length_c   2.97
_cell_angle_alpha   90.0
_cell_angle_beta   129.16
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   MgCrSn
_chemical_formula_sum   'Mg2 Cr2 Sn2'
_cell_volume   115.75
_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  0.22  0.5  0.59  1.0
  Cr  Cr1  2  0.43  0.0  0.3  1.0
  Sn  Sn2  2  0.22  0.5  0.59  1.0

Mg Cr Sn 0 2 o o o 0 1 o o o 1 2 o o o 