data_[Sr6Pa3Si9O36]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Pa  1.5000  1.8000  1.0400
  Si  1.9000  1.1000  0.5400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [6.7643]
_cell_length_b [6.7643]
_cell_length_c [15.5141]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [Sr2Pa(SiO4)3]
_chemical_formula_sum '[Sr6 Pa3 Si9 O36]'
_cell_volume [614.7639]
_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  6  0.0000  0.0000  0.3913  1
  Pa  Pa1  3  0.0000  0.0000  0.0000  1
  Si  Si2  9  0.0000  0.5000  0.5000  1
  O  O3  18  0.0321  0.5161  0.3862  1
  O  O4  18  0.0788  0.5394  0.8164  1
]