data_[Ca4Ga8Si4O24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ca  1.0000  1.8000  1.1400
  Ga  1.8100  1.3000  0.7600
  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 [10.8669]
_cell_length_b [9.0674]
_cell_length_c [6.1556]
_cell_angle_alpha [90.0000]
_cell_angle_beta [118.4316]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [CaGa2SiO6]
_chemical_formula_sum '[Ca4 Ga8 Si4 O24]'
_cell_volume [533.3820]
_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
[
  Ca  Ca0  4  0.0000  0.1967  0.2500  1.0
  Ga  Ga1  8  0.2007  0.4399  0.1643  1.0
  Si  Si2  4  0.0000  0.1822  0.7500  1.0
  O  O3  8  0.0961  0.2732  0.0027  1.0
  O  O4  8  0.1032  0.0826  0.6811  1.0
  O  O5  8  0.1636  0.4178  0.4287  1.0
]