data_[Er16Tm4Mg2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  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 [16.0891]
_cell_length_b [6.4949]
_cell_length_c [6.5710]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.3174]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Er8Tm2Mg]
_chemical_formula_sum '[Er16 Tm4 Mg2]'
_cell_volume [673.2956]
_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
[
  Er  Er0  8  0.0822  0.2591  0.3880  1
  Er  Er1  4  0.0943  0.5000  0.9127  1
  Er  Er2  4  0.2462  0.0000  0.3196  1
  Tm  Tm3  4  0.1887  0.0000  0.7984  1
  Mg  Mg4  2  0.0000  0.0000  0.0000  1
]