data_[Na1Sr3P2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Sr  0.9500  2.0000  1.3200
  P  2.1900  1.0000  0.5500
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P-3m1]
_cell_length_a [5.4550]
_cell_length_b [5.4550]
_cell_length_c [8.7077]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [164]
_chemical_formula_structural [NaSr3(PO4)2]
_chemical_formula_sum '[Na1 Sr3 P2 O8]'
_cell_volume [224.3973]
_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  0.0000  0.0000  0.5000  1
  Sr  Sr1  2  0.3333  0.6667  0.7267  1
  Sr  Sr2  1  0.0000  0.0000  0.0000  1
  P  P3  2  0.3333  0.6667  0.1767  1
  O  O4  6  0.1776  0.3552  0.2361  1
  O  O5  2  0.3333  0.6667  0.9982  1
]