data_[Lu4Ga2Si4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Lu  1.2700  1.7500  1.0010
  Ga  1.8100  1.3000  0.7600
  Si  1.9000  1.1000  0.5400
]
_symmetry_space_group_name_H-M [P4/mbm]
_cell_length_a [6.8294]
_cell_length_b [6.8294]
_cell_length_c [4.1576]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [127]
_chemical_formula_structural [Lu2GaSi2]
_chemical_formula_sum '[Lu4 Ga2 Si4]'
_cell_volume [193.9138]
_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
[
  Lu  Lu0  4  0.1781  0.3219  0.5000  1.0
  Ga  Ga1  2  0.0000  0.0000  0.0000  1.0
  Si  Si2  4  0.1217  0.6217  0.0000  1.0
]