data_[K1Na1Zn1Ge1]
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
  Zn  1.6500  1.3500  0.8800
  Ge  2.0100  1.2500  0.7700
]
_symmetry_space_group_name_H-M [P3m1]
_cell_length_a [4.4095]
_cell_length_b [4.4095]
_cell_length_c [8.1489]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [156]
_chemical_formula_structural [KNaZnGe]
_chemical_formula_sum '[K1 Na1 Zn1 Ge1]'
_cell_volume [137.2199]
_cell_formula_units_Z [1]
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  1  0.3333  0.6667  0.8180  1
  Na  Na1  1  0.3333  0.6667  0.3181  1
  Zn  Zn2  1  0.6667  0.3333  0.1096  1
  Ge  Ge3  1  0.0000  0.0000  0.1051  1
]