data_[Sr9Ac3Mg24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Ac  1.1000  1.9500  1.2600
  Mg  1.3100  1.5000  0.8600
]
_symmetry_space_group_name_H-M [R3m]
_cell_length_a [6.4248]
_cell_length_b [6.4248]
_cell_length_c [31.3639]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [160]
_chemical_formula_structural [Sr3AcMg8]
_chemical_formula_sum '[Sr9 Ac3 Mg24]'
_cell_volume [1121.1951]
_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
[
  Sr  Sr0  3  0.0000  0.0000  0.4999  1
  Sr  Sr1  3  0.0000  0.0000  0.6253  1
  Sr  Sr2  3  0.0000  0.0000  0.9999  1
  Ac  Ac3  3  0.0000  0.0000  0.1247  1
  Mg  Mg4  9  0.1670  0.3340  0.3965  1
  Mg  Mg5  9  0.1672  0.3345  0.8954  1
  Mg  Mg6  3  0.0000  0.0000  0.3123  1
  Mg  Mg7  3  0.0000  0.0000  0.8123  1
]