data_Sr2Ga2Ni
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.66
_cell_length_b   5.66
_cell_length_c   5.66
_cell_angle_alpha   113.38
_cell_angle_beta   113.38
_cell_angle_gamma   101.91
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr2Ga2Ni
_chemical_formula_sum   'Sr2 Ga2 Ni1'
_cell_volume   137.93
_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
  Sr  Sr3  1  0.11  0.0  0.78  1.0
  Sr  Sr4  1  0.0  0.11  0.78  1.0
  Ga  Ga0  1  0.0  0.0  0.37  1.0
  Ga  Ga1  1  0.0  0.0  0.76  1.0
  Ni  Ni2  1  0.0  0.0  0.0  1.0

data_Sr2Ga2Ni
_symmetry_space_group_name_H-M   Cm
_cell_length_a   7.13
_cell_length_b   8.79
_cell_length_c   5.66
_cell_angle_alpha   90.0
_cell_angle_beta   129.04
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Sr2Ga2Ni
_chemical_formula_sum   'Sr4 Ga4 Ni2'
_cell_volume   275.85
_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
  Sr  Sr0  4  0.45  0.45  0.22  1.0
  Ga  Ga1  2  0.0  0.0  0.24  1.0
  Ga  Ga2  2  0.0  0.0  0.63  1.0
  Ni  Ni3  2  0.0  0.0  0.0  1.0

Sr Sr Ga Ga Ni