data_[Na4Mg4Al4F24]
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
  Al  1.6100  1.2500  0.6750
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [Imma]
_cell_length_a [7.0640]
_cell_length_b [7.0868]
_cell_length_c [10.0805]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [NaMgAlF6]
_chemical_formula_sum '[Na4 Mg4 Al4 F24]'
_cell_volume [504.6410]
_cell_formula_units_Z [4]
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  0.2500  0.0648  1.0
  Mg  Mg1  4  0.2500  0.2500  0.7500  1.0
  Al  Al2  4  0.0000  0.0000  0.5000  1.0
  F  F3  16  0.1839  0.0444  0.6211  1.0
  F  F4  4  0.0000  0.2500  0.4493  1.0
  F  F5  4  0.0000  0.2500  0.8397  1.0
]