data_[K2Mg4Al2F16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Mg  1.3100  1.5000  0.8600
  Al  1.6100  1.2500  0.6750
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [7.8510]
_cell_length_b [6.2061]
_cell_length_c [7.0585]
_cell_angle_alpha [90.0000]
_cell_angle_beta [103.0693]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [KMg2AlF8]
_chemical_formula_sum '[K2 Mg4 Al2 F16]'
_cell_volume [335.0089]
_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  0.5000  1.0
  Mg  Mg1  4  0.0545  0.5000  0.7297  1.0
  Al  Al2  2  0.0000  0.0000  0.0000  1.0
  F  F3  8  0.0010  0.2129  0.1852  1.0
  F  F4  4  0.1568  0.5000  0.4979  1.0
  F  F5  4  0.2349  0.0000  0.0616  1.0
]