data_[Mg3Al6Co6O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  Al  1.6100  1.2500  0.6750
  Co  1.8800  1.3500  0.7683
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [5.0344]
_cell_length_b [5.0344]
_cell_length_c [14.6212]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [MgAl2(CoO3)2]
_chemical_formula_sum '[Mg3 Al6 Co6 O18]'
_cell_volume [320.9342]
_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
[
  Mg  Mg0  3  0.0000  -0.0000  0.0000  1
  Al  Al1  6  0.0000  0.0000  0.1767  1
  Co  Co2  6  0.0000  0.0000  0.3754  1
  O  O3  18  0.0037  0.6294  0.5770  1
]