data_

_chemical_formula_sum              ' Y8 Ba16 Fe24 O64-delta'

_cell_length_a                       7.850
_cell_length_b                       7.814
_cell_length_c                       23.572
_cell_angle_alpha                    90.
_cell_angle_beta                     90.
_cell_angle_gamma                    90.
_symmetry_space_group_name_H-M      'F m m m'

loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Fe1a FE+3 0.0 0.0 0.0 1.00000
Fe1b FE+3 0.0 0.0 0.5 1.00000
Fe2a FE+3 0.0 0.0 0.17 1.00000
Fe2b FE+3 0.0 0.0 0.33 1.00000