data_[Ca6Ag3Os3O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ca  1.0000  1.8000  1.1400
  Ag  1.9300  1.6000  1.0867
  Os  2.2000  1.3000  0.6730
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [5.7300]
_cell_length_b [5.7300]
_cell_length_c [15.2998]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [Ca2AgOsO6]
_chemical_formula_sum '[Ca6 Ag3 Os3 O18]'
_cell_volume [435.0435]
_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
[
  Ca  Ca0  3  0.0000  0.0000  0.3003  1.0
  Ca  Ca1  3  0.0000  0.0000  0.7877  1.0
  Ag  Ag2  3  0.0000  0.0000  0.5411  1.0
  Os  Os3  3  0.0000  0.0000  0.9895  1.0
  O  O4  9  0.0076  0.7393  0.9079  1.0
  O  O5  9  0.0119  0.2867  0.0524  1.0
]