data_[K6Mn3Ge3O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Mn  1.5500  1.4000  0.6483
  Ge  2.0100  1.2500  0.7700
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [5.1423]
_cell_length_b [5.1423]
_cell_length_c [17.7221]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [K2MnGeO6]
_chemical_formula_sum '[K6 Mn3 Ge3 O18]'
_cell_volume [405.8531]
_cell_formula_units_Z [3]
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  3  0.0000  0.0000  0.1387  1
  K  K1  3  0.0000  0.0000  0.8609  1
  Mn  Mn2  3  0.0000  0.0000  0.3344  1
  Ge  Ge3  3  0.0000  0.0000  0.6640  1
  O  O4  9  0.0050  0.4238  0.9362  1
  O  O5  9  0.0910  0.7575  0.3964  1
]