data_[Rb4Ca4C8O24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ca  1.0000  1.8000  1.1400
  C  2.5500  0.7000  0.3000
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [8.8395]
_cell_length_b [10.1773]
_cell_length_c [7.3566]
_cell_angle_alpha [90.0000]
_cell_angle_beta [112.2801]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [RbCa(CO3)2]
_chemical_formula_sum '[Rb4 Ca4 C8 O24]'
_cell_volume [612.4108]
_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  0.1240  0.7500  1
  Ca  Ca1  4  0.0000  0.3861  0.2500  1
  C  C2  8  0.2259  0.3809  0.7433  1
  O  O3  8  0.0875  0.3736  0.5946  1
  O  O4  8  0.1735  0.2158  0.2159  1
  O  O5  8  0.2434  0.0150  0.1491  1
]