data_[Ca2Mg2Cd4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ca  1.0000  1.8000  1.1400
  Mg  1.3100  1.5000  0.8600
  Cd  1.6900  1.5500  1.0900
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [4.8990]
_cell_length_b [3.4333]
_cell_length_c [12.1536]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [CaMgCd2]
_chemical_formula_sum '[Ca2 Mg2 Cd4]'
_cell_volume [204.4202]
_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  0.5000  0.0000  0.7912  1.0
  Mg  Mg1  2  0.0000  0.0000  0.4626  1.0
  Cd  Cd2  2  0.0000  0.0000  0.1904  1.0
  Cd  Cd3  2  0.5000  0.0000  0.0519  1.0
]