data_[Mg4Ag6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [9.2487]
_cell_length_b [4.0840]
_cell_length_c [6.5930]
_cell_angle_alpha [90.0000]
_cell_angle_beta [132.1007]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Mg2Ag3]
_chemical_formula_sum '[Mg4 Ag6]'
_cell_volume [184.7670]
_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  4  0.0864  0.5000  0.2939  1.0
  Ag  Ag1  4  0.1994  0.0000  0.1075  1.0
  Ag  Ag2  2  0.0000  0.0000  0.5000  1.0
]