data_GaC
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.46
_cell_length_b   5.46
_cell_length_c   2.9
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   GaC
_chemical_formula_sum   'Ga3 C3'
_cell_volume   74.72
_cell_formula_units_Z   3
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
  Ga  Ga3  1  0.64  0.36  0.0  1.0
  Ga  Ga4  1  0.36  0.36  0.0  1.0
  Ga  Ga5  1  0.73  0.0  0.0  1.0
  C  C0  1  0.0  0.0  0.0  1.0
  C  C1  1  0.73  0.57  0.45  1.0
  C  C2  1  0.0  0.15  0.45  1.0

data_GaC
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.9
_cell_length_b   5.46
_cell_length_c   5.46
_cell_angle_alpha   120.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   GaC
_chemical_formula_sum   'Ga3 C3'
_cell_volume   74.72
_cell_formula_units_Z   3
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
  Ga  Ga0  1  -0.0  0.36  0.36  1.0
  Ga  Ga1  1  -0.0  0.73  0.0  1.0
  Ga  Ga2  1  -0.0  0.64  0.36  1.0
  C  C3  1  0.0  0.0  0.0  1.0
  C  C4  1  0.45  -0.0  0.15  1.0
  C  C5  1  0.45  0.73  0.57  1.0

Ga Ga Ga C C C