data_[Ce1Hf1Mg6O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ce  1.1200  1.8500  1.0800
  Hf  1.3000  1.5500  0.8500
  Mg  1.3100  1.5000  0.8600
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P4/mmm]
_cell_length_a [4.4862]
_cell_length_b [4.4862]
_cell_length_c [9.0567]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [123]
_chemical_formula_structural [CeHfMg6O8]
_chemical_formula_sum '[Ce1 Hf1 Mg6 O8]'
_cell_volume [182.2743]
_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
[
  Ce  Ce0  1  0.0000  0.0000  0.0000  1
  Hf  Hf1  1  0.5000  0.5000  0.0000  1
  Mg  Mg2  4  0.0000  0.5000  0.2705  1
  Mg  Mg3  1  0.0000  0.0000  0.5000  1
  Mg  Mg4  1  0.5000  0.5000  0.5000  1
  O  O5  2  0.0000  0.0000  0.2733  1
  O  O6  2  0.0000  0.5000  0.0000  1
  O  O7  2  0.0000  0.5000  0.5000  1
  O  O8  2  0.5000  0.5000  0.2638  1
]