data_[K4Mg4Os2O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  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 [C2/m]
_cell_length_a [5.4011]
_cell_length_b [9.1818]
_cell_length_c [6.5002]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.1467]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K2Mg2OsO6]
_chemical_formula_sum '[K4 Mg4 Os2 O12]'
_cell_volume [308.0297]
_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
[
  K  K0  4  0.0000  0.1718  0.0000  1.0
  Mg  Mg1  4  0.0000  0.3362  0.5000  1.0
  Os  Os2  2  0.0000  0.0000  0.5000  1.0
  O  O3  8  0.2123  0.1559  0.6694  1.0
  O  O4  4  0.2490  0.0000  0.3306  1.0
]