data_[Mg2Cr4Ag4O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  Cr  1.6600  1.4000  0.9400
  Ag  1.9300  1.6000  1.0867
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [6.5202]
_cell_length_b [6.3686]
_cell_length_c [9.1059]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [MgCr2(AgO4)2]
_chemical_formula_sum '[Mg2 Cr4 Ag4 O16]'
_cell_volume [378.1155]
_cell_formula_units_Z [2]
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
[
  Mg  Mg0  2  0.0000  0.0000  0.3416  1.0
  Cr  Cr1  2  0.0000  0.0000  0.6398  1.0
  Cr  Cr2  2  0.5000  0.0000  0.3583  1.0
  Ag  Ag3  4  0.2618  0.0000  0.9964  1.0
  O  O4  4  0.0000  0.2080  0.5187  1.0
  O  O5  4  0.2031  0.0000  0.7454  1.0
  O  O6  4  0.2780  0.0000  0.2554  1.0
  O  O7  4  0.5000  0.2094  0.4642  1.0
]