data_[Rb1Na8Sr3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Na  0.9300  1.8000  1.1600
  Sr  0.9500  2.0000  1.3200
]
_symmetry_space_group_name_H-M [P3m1]
_cell_length_a [7.2038]
_cell_length_b [7.2038]
_cell_length_c [11.9201]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [156]
_chemical_formula_structural [RbNa8Sr3]
_chemical_formula_sum '[Rb1 Na8 Sr3]'
_cell_volume [535.7170]
_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
[
  Rb  Rb0  1  0.0000  0.0000  0.5649  1
  Na  Na1  3  0.1644  0.3289  0.2423  1
  Na  Na2  3  0.5039  0.0078  0.7584  1
  Na  Na3  1  0.3333  0.6667  0.0004  1
  Na  Na4  1  0.3333  0.6667  0.4973  1
  Sr  Sr5  1  0.0000  0.0000  0.9474  1
  Sr  Sr6  1  0.6667  0.3333  0.0634  1
  Sr  Sr7  1  0.6667  0.3333  0.4246  1
]