data_[Na4Mg2Ti2O8]
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
  Ti  1.5400  1.4000  0.8517
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pmn2_1]
_cell_length_a [6.6018]
_cell_length_b [6.2934]
_cell_length_c [5.4618]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [31]
_chemical_formula_structural [Na2MgTiO4]
_chemical_formula_sum '[Na4 Mg2 Ti2 O8]'
_cell_volume [226.9259]
_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  0.2484  0.6654  0.9872  1.0
  Mg  Mg1  2  0.0000  0.8480  0.4979  1.0
  Ti  Ti2  2  0.0000  0.1570  0.0002  1.0
  O  O3  4  0.2370  0.3016  0.9193  1.0
  O  O4  2  0.0000  0.1255  0.3312  1.0
  O  O5  2  0.0000  0.8945  0.8577  1.0
]