data_[K2Na2Mg2Te4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Na  0.9300  1.8000  1.1600
  Mg  1.3100  1.5000  0.8600
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [I-4m2]
_cell_length_a [4.7624]
_cell_length_b [4.7624]
_cell_length_c [15.3028]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [119]
_chemical_formula_structural [KNaMgTe2]
_chemical_formula_sum '[K2 Na2 Mg2 Te4]'
_cell_volume [347.0785]
_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
[
  K  K0  2  0.0000  0.5000  0.7500  1.0
  Na  Na1  2  0.0000  0.0000  0.5000  1.0
  Mg  Mg2  2  0.0000  0.0000  0.0000  1.0
  Te  Te3  4  0.0000  0.5000  0.1132  1.0
]