data_[Ag8P4O20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ag  1.9300  1.6000  1.0867
  P  2.1900  1.0000  0.5500
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [4.2874]
_cell_length_b [10.3095]
_cell_length_c [9.5457]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Ag2PO5]
_chemical_formula_sum '[Ag8 P4 O20]'
_cell_volume [421.9286]
_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
[
  Ag  Ag0  8  0.0000  0.1550  0.5768  1
  P  P1  4  0.0000  0.1869  0.2500  1
  O  O2  8  0.0000  0.0760  0.1306  1
  O  O3  8  0.0000  0.3030  0.1267  1
  O  O4  4  0.0000  0.2816  0.7500  1
]