data_[Ca3Zr6Ir3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ca  1.0000  1.8000  1.1400
  Zr  1.3300  1.5500  0.8600
  Ir  2.2000  1.3500  0.7650
]
_symmetry_space_group_name_H-M [R3m]
_cell_length_a [3.2960]
_cell_length_b [3.2960]
_cell_length_c [29.3879]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [160]
_chemical_formula_structural [CaZr2Ir]
_chemical_formula_sum '[Ca3 Zr6 Ir3]'
_cell_volume [276.4839]
_cell_formula_units_Z [3]
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  3  0.0000  0.0000  0.5128  1
  Zr  Zr1  3  0.0000  0.0000  0.7416  1
  Zr  Zr2  3  0.0000  0.0000  0.9892  1
  Ir  Ir3  3  0.0000  0.0000  0.2564  1
]