data_[Sr2Be6O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Be  1.5700  1.0500  0.5900
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P-62c]
_cell_length_a [4.6222]
_cell_length_b [4.6222]
_cell_length_c [8.9874]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [190]
_chemical_formula_structural [SrBe3O4]
_chemical_formula_sum '[Sr2 Be6 O8]'
_cell_volume [166.2881]
_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  2  0.3333  0.6667  0.7500  1.0
  Be  Be1  4  0.3333  0.6667  0.4287  1.0
  Be  Be2  2  0.0000  0.0000  0.0000  1.0
  O  O3  6  0.0000  0.3339  0.0000  1.0
  O  O4  2  0.3333  0.6667  0.2500  1.0
]