data_[Mg2Cr2Ag2F12]
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
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P-31c]
_cell_length_a [5.3210]
_cell_length_b [5.3210]
_cell_length_c [10.4606]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [163]
_chemical_formula_structural [MgCrAgF6]
_chemical_formula_sum '[Mg2 Cr2 Ag2 F12]'
_cell_volume [256.4901]
_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  0.3333  0.6667  0.2500  1
  Cr  Cr1  2  0.3333  0.6667  0.7500  1
  Ag  Ag2  2  0.0000  0.0000  0.0000  1
  F  F3  12  0.0094  0.3747  0.6489  1
]