data_[Rb6Na48Sr3]
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 [R3m]
_cell_length_a [12.4890]
_cell_length_b [12.4890]
_cell_length_c [18.5566]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [160]
_chemical_formula_structural [Rb2Na16Sr]
_chemical_formula_sum '[Rb6 Na48 Sr3]'
_cell_volume [2506.5969]
_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
[
  Rb  Rb0  3  0.0000  0.0000  0.3443  1
  Rb  Rb1  3  0.0000  0.0000  0.6586  1
  Na  Na2  18  0.0390  0.3716  0.6669  1
  Na  Na3  9  0.0078  0.5039  0.5013  1
  Na  Na4  9  0.1674  0.3348  0.1822  1
  Na  Na5  9  0.1676  0.3352  0.4860  1
  Na  Na6  3  0.0000  0.0000  0.8929  1
  Sr  Sr7  3  0.0000  0.0000  0.0942  1
]