data_[Sr3Si6W3O24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Si  1.9000  1.1000  0.5400
  W  2.3600  1.3500  0.7667
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [4.8892]
_cell_length_b [4.8892]
_cell_length_c [24.0074]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [SrSi2WO8]
_chemical_formula_sum '[Sr3 Si6 W3 O24]'
_cell_volume [496.9851]
_cell_formula_units_Z [3]
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
[
  Sr  Sr0  3  -0.0000  0.0000  0.5000  1
  Si  Si1  6  0.0000  0.0000  0.2595  1
  W  W2  3  0.0000  0.0000  0.0000  1
  O  O3  18  0.0035  0.6305  0.3811  1
  O  O4  6  0.0000  0.0000  0.1933  1
]