data_[Ca8Ir4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ca  1.0000  1.8000  1.1400
  Ir  2.2000  1.3500  0.7650
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [10.7154]
_cell_length_b [4.4295]
_cell_length_c [7.8944]
_cell_angle_alpha [90.0000]
_cell_angle_beta [121.2350]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Ca2Ir]
_chemical_formula_sum '[Ca8 Ir4]'
_cell_volume [320.3873]
_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
[
  Ca  Ca0  4  0.0899  0.0000  0.3725  1.0
  Ca  Ca1  4  0.1915  0.5000  0.0957  1.0
  Ir  Ir2  4  0.1244  0.5000  0.6634  1.0
]