data_[Na1Mg1Ni1I1O6]
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
  Ni  1.9100  1.3500  0.7400
  I  2.6600  1.4000  1.2733
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P312]
_cell_length_a [5.2767]
_cell_length_b [5.2767]
_cell_length_c [5.3263]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [149]
_chemical_formula_structural [NaMgNiIO6]
_chemical_formula_sum '[Na1 Mg1 Ni1 I1 O6]'
_cell_volume [128.4350]
_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
[
  Na  Na0  1  0.0000  0.0000  0.0000  1.0
  Mg  Mg1  1  0.6667  0.3333  0.0000  1.0
  Ni  Ni2  1  0.3333  0.6667  0.5000  1.0
  I  I3  1  0.6667  0.3333  0.5000  1.0
  O  O4  6  0.3958  0.0332  0.2815  1.0
]