data_SiHgW
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.01
_cell_length_b   3.01
_cell_length_c   6.67
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiHgW
_chemical_formula_sum   'Si1 Hg1 W1'
_cell_volume   52.42
_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
  Si  Si1  1  0.0  0.0  0.38  1.0
  Hg  Hg0  1  0.51  0.87  0.03  1.0
  W  W2  1  0.0  0.74  0.26  1.0

data_SiHgW
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.01
_cell_length_b   3.01
_cell_length_c   6.67
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiHgW
_chemical_formula_sum   'Si1 Hg1 W1'
_cell_volume   52.42
_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
  Si  Si0  1  0.0  0.0  0.38  1.0
  Hg  Hg1  1  0.51  0.87  0.03  1.0
  W  W2  1  0.0  0.74  0.26  1.0

Si Hg W