data_[Sr8Mg8Te8O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Mg  1.3100  1.5000  0.8600
  Te  2.1000  1.4000  1.2933
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pbca]
_cell_length_a [6.4654]
_cell_length_b [8.5333]
_cell_length_c [14.1647]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [61]
_chemical_formula_structural [SrMgTeO]
_chemical_formula_sum '[Sr8 Mg8 Te8 O8]'
_cell_volume [781.4869]
_cell_formula_units_Z [8]
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  8  0.2475  0.1242  0.9046  1
  Mg  Mg1  8  0.1008  0.6251  0.2111  1
  Te  Te2  8  0.2479  0.1260  0.5954  1
  O  O3  8  0.1999  0.1253  0.3144  1
]