data_[Al4Ag4O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Al  1.6100  1.2500  0.6750
  Ag  1.9300  1.6000  1.0867
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pna2_1]
_cell_length_a [5.4765]
_cell_length_b [7.0326]
_cell_length_c [5.4863]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [33]
_chemical_formula_structural [AlAgO2]
_chemical_formula_sum '[Al4 Ag4 O8]'
_cell_volume [211.2975]
_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
[
  Al  Al0  4  0.0635  0.8755  0.4998  1.0
  Ag  Ag1  4  0.0549  0.3650  0.4985  1.0
  O  O2  4  0.0308  0.9320  0.1859  1.0
  O  O3  4  0.1242  0.3255  0.0637  1.0
]