data_[Na6Mg4Ga18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Mg  1.3100  1.5000  0.8600
  Ga  1.8100  1.3000  0.7600
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [4.5353]
_cell_length_b [9.5795]
_cell_length_c [13.2547]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Na3Mg2Ga9]
_chemical_formula_sum '[Na6 Mg4 Ga18]'
_cell_volume [575.8672]
_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
[
  Na  Na0  4  0.0000  0.0000  0.2912  1.0
  Na  Na1  2  0.0000  0.0000  0.0000  1.0
  Mg  Mg2  4  0.0000  0.1799  0.5000  1.0
  Ga  Ga3  8  0.0000  0.2814  0.1432  1.0
  Ga  Ga4  8  0.0000  0.3635  0.3347  1.0
  Ga  Ga5  2  0.0000  0.5000  0.0000  1.0
]