data_[Gd4Tm8Hg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Gd  1.2000  1.8000  1.0750
  Tm  1.2500  1.7500  1.0950
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [Ama2]
_cell_length_a [5.5778]
_cell_length_b [11.2895]
_cell_length_c [7.0684]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [40]
_chemical_formula_structural [GdTm2Hg]
_chemical_formula_sum '[Gd4 Tm8 Hg4]'
_cell_volume [445.1000]
_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
[
  Gd  Gd0  4  0.2500  0.1179  0.4832  1
  Tm  Tm1  4  0.2500  0.1571  0.0057  1
  Tm  Tm2  4  0.2500  0.4023  0.2791  1
  Hg  Hg3  4  0.2500  0.3677  0.7320  1
]