data_[K4Sc2Al2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Sc  1.3600  1.6000  0.8850
  Al  1.6100  1.2500  0.6750
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [I-4]
_cell_length_a [5.6829]
_cell_length_b [5.6829]
_cell_length_c [8.2704]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [82]
_chemical_formula_structural [K2ScAlO4]
_chemical_formula_sum '[K4 Sc2 Al2 O8]'
_cell_volume [267.0918]
_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  0.0000  0.0000  1.0
  K  K1  2  0.0000  0.5000  0.2500  1.0
  Sc  Sc2  2  0.0000  0.5000  0.7500  1.0
  Al  Al3  2  0.0000  0.0000  0.5000  1.0
  O  O4  8  0.1213  0.2329  0.6192  1.0
]