data_[Sm8Tm10Mg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Tm  1.2500  1.7500  1.0950
  Mg  1.3100  1.5000  0.8600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [15.9077]
_cell_length_b [3.4897]
_cell_length_c [12.0370]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.5219]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Sm4Tm5Mg2]
_chemical_formula_sum '[Sm8 Tm10 Mg4]'
_cell_volume [668.1848]
_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
[
  Sm  Sm0  4  0.0552  0.5000  0.2973  1
  Sm  Sm1  4  0.1326  0.0000  0.8203  1
  Tm  Tm2  4  0.1819  0.0000  0.0974  1
  Tm  Tm3  4  0.2438  0.0000  0.3723  1
  Tm  Tm4  2  0.0000  0.5000  0.0000  1
  Mg  Mg5  4  0.0879  0.0000  0.5430  1
]