data_ErGa
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.8
_cell_length_b   5.8
_cell_length_c   4.04
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   136.29
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ErGa
_chemical_formula_sum   'Er2 Ga2'
_cell_volume   94.07
_cell_formula_units_Z   2
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
  Er  Er0  1  0.16  0.12  0.03  1.0
  Er  Er1  1  0.16  0.88  0.01  1.0
  Ga  Ga2  1  0.16  0.17  0.03  1.0
  Ga  Ga3  1  0.16  0.83  0.01  1.0

data_ErGa
_symmetry_space_group_name_H-M   P-1
_cell_length_a   4.04
_cell_length_b   4.32
_cell_length_c   5.8
_cell_angle_alpha   111.85
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   ErGa
_chemical_formula_sum   'Er2 Ga2'
_cell_volume   94.07
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-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
  Er  Er0  2  0.01  0.88  0.88  1.0
  Ga  Ga1  2  0.01  0.83  0.83  1.0

Er Er Ga Ga
Er Er Ga Ga 0 2 o o o 1 3 o o o 