data_[K8Ba4Ca4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Ba  0.8900  2.1500  1.4900
  Ca  1.0000  1.8000  1.1400
]
_symmetry_space_group_name_H-M [Fm-3m]
_cell_length_a [9.8784]
_cell_length_b [9.8784]
_cell_length_c [9.8784]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [225]
_chemical_formula_structural [K2BaCa]
_chemical_formula_sum '[K8 Ba4 Ca4]'
_cell_volume [963.9610]
_cell_formula_units_Z [4]
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
[
  K  K0  8  0.2500  0.2500  0.2500  1
  Ba  Ba1  4  0.0000  0.0000  0.5000  1
  Ca  Ca2  4  0.0000  0.0000  0.0000  1
]