data_[Mg6Sc3Ta3O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  Sc  1.3600  1.6000  0.8850
  Ta  1.5000  1.4500  0.8200
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [5.2510]
_cell_length_b [5.2510]
_cell_length_c [14.2026]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [Mg2ScTaO6]
_chemical_formula_sum '[Mg6 Sc3 Ta3 O18]'
_cell_volume [339.1420]
_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
[
  Mg  Mg0  3  0.0000  0.0000  0.0235  1.0
  Mg  Mg1  3  0.0000  0.0000  0.5224  1.0
  Sc  Sc2  3  0.0000  0.0000  0.8097  1.0
  Ta  Ta3  3  0.0000  0.0000  0.3149  1.0
  O  O4  9  0.0062  0.7082  0.4132  1.0
  O  O5  9  0.0104  0.3666  0.5838  1.0
]