data_[Rb2Tb2Ge2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Tb  1.1000  1.7500  0.9815
  Ge  2.0100  1.2500  0.7700
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [5.7983]
_cell_length_b [5.9361]
_cell_length_c [7.7457]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.9807]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [RbTbGeO4]
_chemical_formula_sum '[Rb2 Tb2 Ge2 O8]'
_cell_volume [253.5797]
_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
[
  Rb  Rb0  2  0.3105  0.2500  0.0678  1.0
  Tb  Tb1  2  0.2034  0.2500  0.5383  1.0
  Ge  Ge2  2  0.2564  0.7500  0.3433  1.0
  O  O3  4  0.0440  0.5232  0.3267  1.0
  O  O4  2  0.4469  0.7500  0.2042  1.0
  O  O5  2  0.4660  0.7500  0.5652  1.0
]