data_CrFeHg2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.85
_cell_length_b   3.86
_cell_length_c   5.82
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CrFeHg2
_chemical_formula_sum   'Cr1 Fe1 Hg2'
_cell_volume   64.13
_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
  Cr  Cr0  1  0.0  0.0  0.0  1.0
  Fe  Fe1  1  0.0  0.0  0.91  1.0
  Hg  Hg2  1  0.43  0.93  0.34  1.0
  Hg  Hg3  1  0.43  0.93  0.48  1.0

data_CrFeHg2
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.85
_cell_length_b   3.86
_cell_length_c   5.82
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CrFeHg2
_chemical_formula_sum   'Cr1 Fe1 Hg2'
_cell_volume   64.13
_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
  Cr  Cr0  1  0.0  0.0  0.0  1.0
  Fe  Fe1  1  0.0  0.0  0.91  1.0
  Hg  Hg2  1  0.43  0.93  0.34  1.0
  Hg  Hg3  1  0.43  0.93  0.48  1.0

Cr Fe Hg Hg
Cr Fe Hg Hg 0 1 o o - 2 3 o o o 