data_[Er6Si3Os9]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Si  1.9000  1.1000  0.5400
  Os  2.2000  1.3000  0.6730
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [5.4057]
_cell_length_b [5.4057]
_cell_length_c [12.4275]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [Er2SiOs3]
_chemical_formula_sum '[Er6 Si3 Os9]'
_cell_volume [314.4950]
_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
[
  Er  Er0  6  0.0000  0.0000  0.3762  1.0
  Si  Si1  3  0.0000  0.0000  0.0000  1.0
  Os  Os2  9  0.0000  0.5000  0.5000  1.0
]