data_[Rb4Tm4Si8O24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Tm  1.2500  1.7500  1.0950
  Si  1.9000  1.1000  0.5400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [10.3113]
_cell_length_b [9.8358]
_cell_length_c [5.5170]
_cell_angle_alpha [90.0000]
_cell_angle_beta [102.3377]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [RbTm(SiO3)2]
_chemical_formula_sum '[Rb4 Tm4 Si8 O24]'
_cell_volume [546.6122]
_cell_formula_units_Z [4]
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  4  0.0000  0.1821  0.2500  1.0
  Tm  Tm1  4  0.0000  0.3863  0.7500  1.0
  Si  Si2  8  0.2205  0.0819  0.8000  1.0
  O  O3  8  0.1169  0.4337  0.1321  1.0
  O  O4  8  0.1506  0.2293  0.7485  1.0
  O  O5  8  0.1682  0.0081  0.0368  1.0
]