data_[Ba2Sr2Mg2Si4O14]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ba  0.8900  2.1500  1.4900
  Sr  0.9500  2.0000  1.3200
  Mg  1.3100  1.5000  0.8600
  Si  1.9000  1.1000  0.5400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_1]
_cell_length_a [5.3445]
_cell_length_b [8.2170]
_cell_length_c [8.2072]
_cell_angle_alpha [90.0000]
_cell_angle_beta [91.0167]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [4]
_chemical_formula_structural [BaSrMgSi2O7]
_chemical_formula_sum '[Ba2 Sr2 Mg2 Si4 O14]'
_cell_volume [360.3723]
_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
[
  Ba  Ba0  2  0.4877  0.8352  0.4128  1
  Sr  Sr1  2  0.4945  0.1690  0.0824  1
  Mg  Mg2  2  0.0009  0.9987  0.7525  1
  Si  Si3  2  0.0453  0.6377  0.6229  1
  Si  Si4  2  0.0545  0.3623  0.8980  1
  O  O5  2  0.1522  0.5011  0.7610  1
  O  O6  2  0.1678  0.5773  0.4501  1
  O  O7  2  0.1854  0.1910  0.8381  1
  O  O8  2  0.1902  0.8057  0.6806  1
  O  O9  2  0.2049  0.4201  0.0654  1
  O  O10  2  0.2484  0.8604  0.0958  1
  O  O11  2  0.2573  0.1415  0.3747  1
]