data_NiS2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.38
_cell_length_b   4.38
_cell_length_c   2.55
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NiS2
_chemical_formula_sum   'Ni1 S2'
_cell_volume   42.38
_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
  Ni  Ni0  1  0.0  0.0  0.0  1.0
  S  S1  1  0.19  0.26  0.28  1.0
  S  S2  1  0.0  0.53  0.28  1.0

data_NiS2
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.55
_cell_length_b   4.38
_cell_length_c   4.38
_cell_angle_alpha   120.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NiS2
_chemical_formula_sum   'Ni1 S2'
_cell_volume   42.38
_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
  Ni  Ni0  1  0.0  0.0  0.0  1.0
  S  S1  1  0.28  0.0  0.53  1.0
  S  S2  1  0.28  0.19  0.26  1.0

Ni S S
Ni S S 0 1 o o o 1 2 o o o 