data_[Na3Ca9P3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ca  1.0000  1.8000  1.1400
  P  2.1900  1.0000  0.5500
]
_symmetry_space_group_name_H-M [R3m]
_cell_length_a [8.6988]
_cell_length_b [8.6988]
_cell_length_c [13.2441]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [160]
_chemical_formula_structural [NaCa3P]
_chemical_formula_sum '[Na3 Ca9 P3]'
_cell_volume [867.9156]
_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
[
  Na  Na0  3  0.0000  0.0000  0.3621  1
  Ca  Ca1  9  0.1706  0.3411  0.2046  1
  P  P2  3  0.0000  0.0000  0.1491  1
]