data_[Na1Er2W1O6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Er  1.2400  1.7500  1.0300
  W  2.3600  1.3500  0.7667
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P1]
_cell_length_a [5.6063]
_cell_length_b [5.6449]
_cell_length_c [5.9619]
_cell_angle_alpha [61.9189]
_cell_angle_beta [62.8236]
_cell_angle_gamma [60.3193]
_symmetry_Int_Tables_number [1]
_chemical_formula_structural [NaEr2WO6]
_chemical_formula_sum '[Na1 Er2 W1 O6]'
_cell_volume [138.3344]
_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
[
  Na  Na0  1  0.8033  0.7989  0.6041  1.0
  Er  Er1  1  0.0223  0.0085  0.9482  1.0
  Er  Er2  1  0.5284  0.5294  0.4250  1.0
  W  W3  1  0.3222  0.3229  0.0351  1.0
  O  O4  1  0.1478  0.3867  0.7764  1.0
  O  O5  1  0.2310  0.9525  0.2342  1.0
  O  O6  1  0.3903  0.6981  0.7627  1.0
  O  O7  1  0.5701  0.2409  0.2272  1.0
  O  O8  1  0.6951  0.1448  0.7695  1.0
  O  O9  1  0.9510  0.5788  0.2328  1.0
]