data_[Ca1Gd1Ag2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ca  1.0000  1.8000  1.1400
  Gd  1.2000  1.8000  1.0750
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [P4/mmm]
_cell_length_a [3.6916]
_cell_length_b [3.6916]
_cell_length_c [7.4109]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [123]
_chemical_formula_structural [CaGdAg2]
_chemical_formula_sum '[Ca1 Gd1 Ag2]'
_cell_volume [100.9937]
_cell_formula_units_Z [1]
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
[
  Ca  Ca0  1  0.5000  0.5000  0.5000  1
  Gd  Gd1  1  0.5000  0.5000  0.0000  1
  Ag  Ag2  2  0.0000  0.0000  0.2354  1
]