[CIF]
data_He
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.50831180
_cell_length_b   3.50831180
_cell_length_c   4.37814400
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   120.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   He
_chemical_formula_sum   He4
_cell_volume   46.66776914
_cell_formula_units_Z   4
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
  He  He0  1  0.00000000  0.00000000  1.09453600  1
  He  He1  1  -0.00000000  2.02552476  1.09453600  1
  He  He2  1  0.00000000  0.00000000  3.28360800  1
  He  He3  1  1.75415590  1.01276238  3.28360800  1
[/CIF]
