data_[Na4Mg2Os2O12]
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
  Os  2.2000  1.3000  0.6730
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [5.4410]
_cell_length_b [5.5108]
_cell_length_c [9.4706]
_cell_angle_alpha [90.0000]
_cell_angle_beta [125.1429]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [Na2MgOsO6]
_chemical_formula_sum '[Na4 Mg2 Os2 O12]'
_cell_volume [232.2076]
_cell_formula_units_Z [2]
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  4  0.2561  0.5318  0.7503  1.0
  Mg  Mg1  2  0.5000  0.0000  0.0000  1.0
  Os  Os2  2  0.0000  0.0000  0.5000  1.0
  O  O3  4  0.1678  0.5149  0.2365  1.0
  O  O4  4  0.2321  0.2249  0.0367  1.0
  O  O5  4  0.3092  0.6982  0.0341  1.0
]