data_[Be4Zn4Ag4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Be  1.5700  1.0500  0.5900
  Zn  1.6500  1.3500  0.8800
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [Ama2]
_cell_length_a [4.0861]
_cell_length_b [4.6418]
_cell_length_c [8.6664]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [40]
_chemical_formula_structural [BeZnAg]
_chemical_formula_sum '[Be4 Zn4 Ag4]'
_cell_volume [164.3756]
_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
[
  Be  Be0  4  0.2500  0.1442  0.5172  1
  Zn  Zn1  4  0.2500  0.1771  0.8974  1
  Ag  Ag2  4  0.2500  0.2216  0.2005  1
]