data_[Na10Sr10Ca2]
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
  Ca  1.0000  1.8000  1.1400
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [6.2540]
_cell_length_b [19.3703]
_cell_length_c [8.6125]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [Na5Sr5Ca]
_chemical_formula_sum '[Na10 Sr10 Ca2]'
_cell_volume [1043.3345]
_cell_formula_units_Z [2]
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  4  0.0000  0.1930  0.0000  1
  Na  Na1  4  0.0000  0.1980  0.5000  1
  Na  Na2  2  0.0000  0.5000  0.0000  1
  Sr  Sr3  8  0.0000  0.3670  0.2600  1
  Sr  Sr4  2  0.0000  0.0000  0.5000  1
  Ca  Ca5  2  0.0000  0.0000  0.0000  1
]