data_[Mn6Al3Cr3O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mn  1.5500  1.4000  0.6483
  Al  1.6100  1.2500  0.6750
  Cr  1.6600  1.4000  0.9400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [4.9668]
_cell_length_b [4.9668]
_cell_length_c [13.5230]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [Mn2AlCrO6]
_chemical_formula_sum '[Mn6 Al3 Cr3 O18]'
_cell_volume [288.9055]
_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
[
  Mn  Mn0  3  0.0000  0.0000  0.0180  1
  Mn  Mn1  3  0.0000  0.0000  0.5181  1
  Al  Al2  3  0.0000  0.0000  0.3187  1
  Cr  Cr3  3  0.0000  0.0000  0.8209  1
  O  O4  9  0.0122  0.3198  0.9215  1
  O  O5  9  0.0363  0.6692  0.0838  1
]