data_[Ca2Cd6Cu2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ca  1.0000  1.8000  1.1400
  Cd  1.6900  1.5500  1.0900
  Cu  1.9000  1.3500  0.8200
]
_symmetry_space_group_name_H-M [P6_3/mmc]
_cell_length_a [6.9361]
_cell_length_b [6.9361]
_cell_length_c [5.5405]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [194]
_chemical_formula_structural [CaCd3Cu]
_chemical_formula_sum '[Ca2 Cd6 Cu2]'
_cell_volume [230.8396]
_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
[
  Ca  Ca0  2  0.3333  0.6667  0.2500  1
  Cd  Cd1  6  0.1883  0.3767  0.7500  1
  Cu  Cu2  2  0.0000  0.0000  0.0000  1
]