data_[Rb1Mg30Cr1O32]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Mg  1.3100  1.5000  0.8600
  Cr  1.6600  1.4000  0.9400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P4/mmm]
_cell_length_a [8.6198]
_cell_length_b [8.6198]
_cell_length_c [8.6216]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [123]
_chemical_formula_structural [RbMg30CrO32]
_chemical_formula_sum '[Rb1 Mg30 Cr1 O32]'
_cell_volume [640.5927]
_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
[
  Rb  Rb0  1  0.0000  0.0000  0.0000  1
  Mg  Mg1  8  0.0000  0.2516  0.2531  1
  Mg  Mg2  8  0.2475  0.5000  0.2513  1
  Mg  Mg3  4  0.2488  0.2488  0.5000  1
  Mg  Mg4  4  0.2503  0.2503  0.0000  1
  Mg  Mg5  2  0.0000  0.5000  0.0000  1
  Mg  Mg6  2  0.0000  0.5000  0.5000  1
  Mg  Mg7  1  0.0000  0.0000  0.5000  1
  Mg  Mg8  1  0.5000  0.5000  0.5000  1
  Cr  Cr9  1  0.5000  0.5000  0.0000  1
  O  O10  8  0.2502  0.2502  0.2490  1
  O  O11  4  0.0000  0.2562  0.5000  1
  O  O12  4  0.0000  0.2794  0.0000  1
  O  O13  4  0.0000  0.5000  0.2541  1
  O  O14  4  0.2533  0.5000  0.5000  1
  O  O15  4  0.2622  0.5000  0.0000  1
  O  O16  2  0.0000  0.0000  0.2786  1
  O  O17  2  0.5000  0.5000  0.2428  1
]