data_[Sr4Er2Te2O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Er  1.2400  1.7500  1.0300
  Te  2.1000  1.4000  1.2933
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pmmn]
_cell_length_a [5.9671]
_cell_length_b [8.4580]
_cell_length_c [6.0362]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [59]
_chemical_formula_structural [Sr2ErTeO6]
_chemical_formula_sum '[Sr4 Er2 Te2 O12]'
_cell_volume [304.6425]
_cell_formula_units_Z [2]
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
[
  Sr  Sr0  4  0.0000  0.2586  0.7762  1
  Er  Er1  2  0.0000  0.5000  0.2611  1
  Te  Te2  2  0.0000  0.0000  0.2443  1
  O  O3  4  0.0000  0.2425  0.2275  1
  O  O4  4  0.2424  0.0000  0.0001  1
  O  O5  4  0.2492  0.0000  0.4771  1
]