The compound described by Al2O3 crystallizes in the triclinic P1 space group. There are sixteen inequivalent Al sites. In the first Al site, Al(1) is bonded to one O(1), one O(3), one O(4), one O(5), and one O(7) atom to form distorted AlO5 square pyramids that share  a cornercorner with one Al(8)O6 octahedra,  a cornercorner with one Al(5)O4 tetrahedra,  a cornercorner with one Al(7)O4 tetrahedra, corners with two equivalent Al(2)O4 trigonal pyramids, and edges with two equivalent Al(3)O6 octahedra. The corner-sharing octahedral tilt angles are 78°. In the second Al site, Al(2) is bonded to one O(1), one O(21), one O(22), and one O(3) atom to form distorted AlO4 trigonal pyramids that share  a cornercorner with one Al(3)O6 octahedra, corners with two equivalent Al(1)O5 square pyramids,  a cornercorner with one Al(9)O4 tetrahedra, and  an edgeedge with one Al(11)O6 octahedra. The corner-sharing octahedral tilt angles are 66°. In the third Al site, Al(3) is bonded to one O(10), one O(2), one O(3), one O(4), one O(5), and one O(7) atom to form AlO6 octahedra that share  a cornercorner with one Al(5)O4 tetrahedra, corners with two equivalent Al(7)O4 tetrahedra,  a cornercorner with one Al(2)O4 trigonal pyramid,  an edgeedge with one Al(8)O6 octahedra, and edges with two equivalent Al(1)O5 square pyramids. In the fourth Al site, Al(4) is bonded in a 5-coordinate geometry to one O(13), one O(18), one O(19), one O(6), and one O(8) atom. In the fifth Al site, Al(5) is bonded to one O(11), one O(5), one O(6), and one O(9) atom to form distorted AlO4 tetrahedra that share  a cornercorner with one Al(12)O6 octahedra,  a cornercorner with one Al(3)O6 octahedra,  a cornercorner with one Al(8)O6 octahedra,  a cornercorner with one Al(1)O5 square pyramid,  a cornercorner with one Al(7)O4 tetrahedra, and  an edgeedge with one Al(8)O6 octahedra. The corner-sharing octahedral tilt angles range from 57-72°. In the sixth Al site, Al(6) is bonded in a 4-coordinate geometry to one O(12), one O(13), one O(15), one O(18), and one O(9) atom. In the seventh Al site, Al(7) is bonded to one O(11), one O(12), one O(2), and one O(7) atom to form AlO4 tetrahedra that share  a cornercorner with one Al(12)O6 octahedra, corners with two equivalent Al(3)O6 octahedra, corners with three equivalent Al(8)O6 octahedra,  a cornercorner with one Al(1)O5 square pyramid, and  a cornercorner with one Al(5)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 43-64°. In the eighth Al site, Al(8) is bonded to one O(11), one O(18), one O(2), one O(6), one O(7), and one O(9) atom to form AlO6 octahedra that share corners with two equivalent Al(12)O6 octahedra,  a cornercorner with one Al(1)O5 square pyramid,  a cornercorner with one Al(5)O4 tetrahedra, corners with three equivalent Al(7)O4 tetrahedra,  an edgeedge with one Al(3)O6 octahedra, and  an edgeedge with one Al(5)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 42-47°. In the ninth Al site, Al(9) is bonded to one O(14), one O(16), one O(21), and one O(23) atom to form AlO4 tetrahedra that share  a cornercorner with one Al(11)O6 octahedra,  a cornercorner with one Al(14)O4 tetrahedra,  a cornercorner with one Al(10)O5 trigonal bipyramid,  a cornercorner with one Al(13)O5 trigonal bipyramid,  a cornercorner with one Al(2)O4 trigonal pyramid, and  an edgeedge with one Al(11)O6 octahedra. The corner-sharing octahedral tilt angles are 61°. In the tenth Al site, Al(10) is bonded to one O(13), one O(14), one O(15), one O(17), and one O(20) atom to form distorted AlO5 trigonal bipyramids that share  a cornercorner with one Al(12)O6 octahedra,  a cornercorner with one Al(9)O4 tetrahedra, corners with two equivalent Al(14)O4 tetrahedra,  a cornercorner with one Al(13)O5 trigonal bipyramid,  an edgeedge with one Al(11)O6 octahedra, and  an edgeedge with one Al(13)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 63°. In the eleventh Al site, Al(11) is bonded to one O(16), one O(17), one O(20), one O(21), one O(22), and one O(23) atom to form AlO6 octahedra that share  a cornercorner with one Al(9)O4 tetrahedra, corners with three equivalent Al(14)O4 tetrahedra,  a cornercorner with one Al(13)O5 trigonal bipyramid,  an edgeedge with one Al(9)O4 tetrahedra,  an edgeedge with one Al(10)O5 trigonal bipyramid, and  an edgeedge with one Al(2)O4 trigonal pyramid. In the twelfth Al site, Al(12) is bonded to one O(12), one O(13), one O(18), one O(19), one O(8), and one O(9) atom to form distorted AlO6 octahedra that share corners with two equivalent Al(8)O6 octahedra,  a cornercorner with one Al(5)O4 tetrahedra,  a cornercorner with one Al(7)O4 tetrahedra,  a cornercorner with one Al(10)O5 trigonal bipyramid, and  an edgeedge with one Al(13)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 42-47°. In the thirteenth Al site, Al(13) is bonded to one O(14), one O(15), one O(19), one O(20), and one O(8) atom to form AlO5 trigonal bipyramids that share  a cornercorner with one Al(11)O6 octahedra,  a cornercorner with one Al(14)O4 tetrahedra,  a cornercorner with one Al(9)O4 tetrahedra,  a cornercorner with one Al(10)O5 trigonal bipyramid,  an edgeedge with one Al(12)O6 octahedra, and  an edgeedge with one Al(10)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 59°. In the fourteenth Al site, Al(14) is bonded to one O(17), one O(20), one O(23), and one O(24) atom to form AlO4 tetrahedra that share corners with three equivalent Al(11)O6 octahedra,  a cornercorner with one Al(9)O4 tetrahedra,  a cornercorner with one Al(13)O5 trigonal bipyramid, and corners with two equivalent Al(10)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 46-64°. In the fifteenth Al site, Al(15) is bonded in a 5-coordinate geometry to one O(1), one O(10), one O(16), one O(24), and one O(4) atom. In the sixteenth Al site, Al(16) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(10), one O(22), and one O(24) atom. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a distorted see-saw-like geometry to one Al(1), one Al(15), one Al(16), and one Al(2) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Al(3), one Al(7), and one Al(8) atom. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Al(1), one Al(2), and one Al(3) atom. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Al(1), one Al(15), and one Al(3) atom. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to one Al(1), one Al(3), and one Al(5) atom. In the sixth O site, O(6) is bonded in a trigonal non-coplanar geometry to one Al(4), one Al(5), and one Al(8) atom. In the seventh O site, O(7) is bonded to one Al(1), one Al(3), one Al(7), and one Al(8) atom to form distorted corner-sharing OAl4 trigonal pyramids. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Al(12), one Al(13), and one Al(4) atom. In the ninth O site, O(9) is bonded to one Al(12), one Al(5), one Al(6), and one Al(8) atom to form a mixture of distorted edge and corner-sharing OAl4 trigonal pyramids. In the tenth O site, O(10) is bonded in a distorted T-shaped geometry to one Al(15), one Al(16), and one Al(3) atom. In the eleventh O site, O(11) is bonded in a distorted T-shaped geometry to one Al(5), one Al(7), and one Al(8) atom. In the twelfth O site, O(12) is bonded in a trigonal planar geometry to one Al(12), one Al(6), and one Al(7) atom. In the thirteenth O site, O(13) is bonded to one Al(10), one Al(12), one Al(4), and one Al(6) atom to form a mixture of distorted edge and corner-sharing OAl4 trigonal pyramids. In the fourteenth O site, O(14) is bonded in a trigonal planar geometry to one Al(10), one Al(13), and one Al(9) atom. In the fifteenth O site, O(15) is bonded in a trigonal non-coplanar geometry to one Al(10), one Al(13), and one Al(6) atom. In the sixteenth O site, O(16) is bonded in a trigonal planar geometry to one Al(11), one Al(15), and one Al(9) atom. In the seventeenth O site, O(17) is bonded in a distorted trigonal non-coplanar geometry to one Al(10), one Al(11), and one Al(14) atom. In the eighteenth O site, O(18) is bonded in a distorted rectangular see-saw-like geometry to one Al(12), one Al(4), one Al(6), and one Al(8) atom. In the nineteenth O site, O(19) is bonded in a T-shaped geometry to one Al(12), one Al(13), and one Al(4) atom. In the twentieth O site, O(20) is bonded to one Al(10), one Al(11), one Al(13), and one Al(14) atom to form distorted corner-sharing OAl4 trigonal pyramids. In the twenty-first O site, O(21) is bonded in a 3-coordinate geometry to one Al(11), one Al(2), and one Al(9) atom. In the twenty-second O site, O(22) is bonded in a distorted trigonal non-coplanar geometry to one Al(11), one Al(16), and one Al(2) atom. In the twenty-third O site, O(23) is bonded in a distorted T-shaped geometry to one Al(11), one Al(14), and one Al(9) atom. In the twenty-fourth O site, O(24) is bonded in a distorted trigonal planar geometry to one Al(14), one Al(15), and one Al(16) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Al2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.716
_cell_length_b   5.665
_cell_length_c   16.595
_cell_angle_alpha   62.923
_cell_angle_beta   66.365
_cell_angle_gamma   58.337
_symmetry_Int_Tables_number   1
_cell_volume   397.845
_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
  Al  Al0  1  0.096  0.945  0.150  1.0
  Al  Al1  1  0.336  0.519  0.010  1.0
  Al  Al2  1  0.577  0.430  0.158  1.0
  Al  Al3  1  0.483  0.034  0.509  1.0
  Al  Al4  1  0.480  0.584  0.317  1.0
  Al  Al5  1  0.701  0.466  0.482  1.0
  Al  Al6  1  0.037  0.278  0.295  1.0
  Al  Al7  1  0.640  0.963  0.329  1.0
  Al  Al8  1  0.221  0.094  0.831  1.0
  Al  Al9  1  0.364  0.527  0.665  1.0
  Al  Al10  1  0.433  0.538  0.828  1.0
  Al  Al11  1  0.080  0.786  0.494  1.0
  Al  Al12  1  0.928  0.394  0.645  1.0
  Al  Al13  1  0.811  0.880  0.793  1.0
  Al  Al14  1  0.949  0.417  0.988  1.0
  Al  Al15  1  0.623  0.972  0.993  1.0
  O  O16  1  0.278  0.185  0.056  1.0
  O  O17  1  0.395  0.182  0.248  1.0
  O  O18  1  0.298  0.663  0.089  1.0
  O  O19  1  0.803  0.173  0.087  1.0
  O  O20  1  0.352  0.705  0.221  1.0
  O  O21  1  0.446  0.250  0.388  1.0
  O  O22  1  0.874  0.165  0.242  1.0
  O  O23  1  0.247  0.353  0.551  1.0
  O  O24  1  0.406  0.730  0.404  1.0
  O  O25  1  0.805  0.636  0.071  1.0
  O  O26  1  0.809  0.654  0.270  1.0
  O  O27  1  0.908  0.183  0.425  1.0
  O  O28  1  0.288  0.809  0.554  1.0
  O  O29  1  0.120  0.355  0.723  1.0
  O  O30  1  0.718  0.323  0.601  1.0
  O  O31  1  0.209  0.294  0.892  1.0
  O  O32  1  0.177  0.764  0.742  1.0
  O  O33  1  0.827  0.744  0.426  1.0
  O  O34  1  0.757  0.794  0.583  1.0
  O  O35  1  0.664  0.291  0.755  1.0
  O  O36  1  0.164  0.774  0.914  1.0
  O  O37  1  0.639  0.318  0.926  1.0
  O  O38  1  0.552  0.837  0.778  1.0
  O  O39  1  0.709  0.771  0.918  1.0
[/CIF]
.
The compound described by Al2O3 crystallizes in the triclinic P1 space group. There are sixteen inequivalent Al sites. In the first Al site, Al(1) is bonded to one O(1), one O(3), one O(4), one O(5), and one O(7) atom to form distorted AlO5 square pyramids that share  a cornercorner with one Al(8)O6 octahedra,  a cornercorner with one Al(5)O4 tetrahedra,  a cornercorner with one Al(7)O4 tetrahedra, corners with two equivalent Al(2)O4 trigonal pyramids, and edges with two equivalent Al(3)O6 octahedra. The corner-sharing octahedral tilt angles are 78°. In the second Al site, Al(2) is bonded to one O(1), one O(21), one O(22), and one O(3) atom to form distorted AlO4 trigonal pyramids that share  a cornercorner with one Al(3)O6 octahedra, corners with two equivalent Al(1)O5 square pyramids,  a cornercorner with one Al(9)O4 tetrahedra, and  an edgeedge with one Al(11)O6 octahedra. The corner-sharing octahedral tilt angles are 66°. In the third Al site, Al(3) is bonded to one O(10), one O(2), one O(3), one O(4), one O(5), and one O(7) atom to form AlO6 octahedra that share  a cornercorner with one Al(5)O4 tetrahedra, corners with two equivalent Al(7)O4 tetrahedra,  a cornercorner with one Al(2)O4 trigonal pyramid,  an edgeedge with one Al(8)O6 octahedra, and edges with two equivalent Al(1)O5 square pyramids. In the fourth Al site, Al(4) is bonded in a 5-coordinate geometry to one O(13), one O(18), one O(19), one O(6), and one O(8) atom. In the fifth Al site, Al(5) is bonded to one O(11), one O(5), one O(6), and one O(9) atom to form distorted AlO4 tetrahedra that share  a cornercorner with one Al(12)O6 octahedra,  a cornercorner with one Al(3)O6 octahedra,  a cornercorner with one Al(8)O6 octahedra,  a cornercorner with one Al(1)O5 square pyramid,  a cornercorner with one Al(7)O4 tetrahedra, and  an edgeedge with one Al(8)O6 octahedra. The corner-sharing octahedral tilt angles range from 57-72°. In the sixth Al site, Al(6) is bonded in a 4-coordinate geometry to one O(12), one O(13), one O(15), one O(18), and one O(9) atom. In the seventh Al site, Al(7) is bonded to one O(11), one O(12), one O(2), and one O(7) atom to form AlO4 tetrahedra that share  a cornercorner with one Al(12)O6 octahedra, corners with two equivalent Al(3)O6 octahedra, corners with three equivalent Al(8)O6 octahedra,  a cornercorner with one Al(1)O5 square pyramid, and  a cornercorner with one Al(5)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 43-64°. In the eighth Al site, Al(8) is bonded to one O(11), one O(18), one O(2), one O(6), one O(7), and one O(9) atom to form AlO6 octahedra that share corners with two equivalent Al(12)O6 octahedra,  a cornercorner with one Al(1)O5 square pyramid,  a cornercorner with one Al(5)O4 tetrahedra, corners with three equivalent Al(7)O4 tetrahedra,  an edgeedge with one Al(3)O6 octahedra, and  an edgeedge with one Al(5)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 42-47°. In the ninth Al site, Al(9) is bonded to one O(14), one O(16), one O(21), and one O(23) atom to form AlO4 tetrahedra that share  a cornercorner with one Al(11)O6 octahedra,  a cornercorner with one Al(14)O4 tetrahedra,  a cornercorner with one Al(10)O5 trigonal bipyramid,  a cornercorner with one Al(13)O5 trigonal bipyramid,  a cornercorner with one Al(2)O4 trigonal pyramid, and  an edgeedge with one Al(11)O6 octahedra. The corner-sharing octahedral tilt angles are 61°. In the tenth Al site, Al(10) is bonded to one O(13), one O(14), one O(15), one O(17), and one O(20) atom to form distorted AlO5 trigonal bipyramids that share  a cornercorner with one Al(12)O6 octahedra,  a cornercorner with one Al(9)O4 tetrahedra, corners with two equivalent Al(14)O4 tetrahedra,  a cornercorner with one Al(13)O5 trigonal bipyramid,  an edgeedge with one Al(11)O6 octahedra, and  an edgeedge with one Al(13)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 63°. In the eleventh Al site, Al(11) is bonded to one O(16), one O(17), one O(20), one O(21), one O(22), and one O(23) atom to form AlO6 octahedra that share  a cornercorner with one Al(9)O4 tetrahedra, corners with three equivalent Al(14)O4 tetrahedra,  a cornercorner with one Al(13)O5 trigonal bipyramid,  an edgeedge with one Al(9)O4 tetrahedra,  an edgeedge with one Al(10)O5 trigonal bipyramid, and  an edgeedge with one Al(2)O4 trigonal pyramid. In the twelfth Al site, Al(12) is bonded to one O(12), one O(13), one O(18), one O(19), one O(8), and one O(9) atom to form distorted AlO6 octahedra that share corners with two equivalent Al(8)O6 octahedra,  a cornercorner with one Al(5)O4 tetrahedra,  a cornercorner with one Al(7)O4 tetrahedra,  a cornercorner with one Al(10)O5 trigonal bipyramid, and  an edgeedge with one Al(13)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 42-47°. In the thirteenth Al site, Al(13) is bonded to one O(14), one O(15), one O(19), one O(20), and one O(8) atom to form AlO5 trigonal bipyramids that share  a cornercorner with one Al(11)O6 octahedra,  a cornercorner with one Al(14)O4 tetrahedra,  a cornercorner with one Al(9)O4 tetrahedra,  a cornercorner with one Al(10)O5 trigonal bipyramid,  an edgeedge with one Al(12)O6 octahedra, and  an edgeedge with one Al(10)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 59°. In the fourteenth Al site, Al(14) is bonded to one O(17), one O(20), one O(23), and one O(24) atom to form AlO4 tetrahedra that share corners with three equivalent Al(11)O6 octahedra,  a cornercorner with one Al(9)O4 tetrahedra,  a cornercorner with one Al(13)O5 trigonal bipyramid, and corners with two equivalent Al(10)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 46-64°. In the fifteenth Al site, Al(15) is bonded in a 5-coordinate geometry to one O(1), one O(10), one O(16), one O(24), and one O(4) atom. In the sixteenth Al site, Al(16) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(10), one O(22), and one O(24) atom. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a distorted see-saw-like geometry to one Al(1), one Al(15), one Al(16), and one Al(2) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Al(3), one Al(7), and one Al(8) atom. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Al(1), one Al(2), and one Al(3) atom. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Al(1), one Al(15), and one Al(3) atom. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to one Al(1), one Al(3), and one Al(5) atom. In the sixth O site, O(6) is bonded in a trigonal non-coplanar geometry to one Al(4), one Al(5), and one Al(8) atom. In the seventh O site, O(7) is bonded to one Al(1), one Al(3), one Al(7), and one Al(8) atom to form distorted corner-sharing OAl4 trigonal pyramids. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Al(12), one Al(13), and one Al(4) atom. In the ninth O site, O(9) is bonded to one Al(12), one Al(5), one Al(6), and one Al(8) atom to form a mixture of distorted edge and corner-sharing OAl4 trigonal pyramids. In the tenth O site, O(10) is bonded in a distorted T-shaped geometry to one Al(15), one Al(16), and one Al(3) atom. In the eleventh O site, O(11) is bonded in a distorted T-shaped geometry to one Al(5), one Al(7), and one Al(8) atom. In the twelfth O site, O(12) is bonded in a trigonal planar geometry to one Al(12), one Al(6), and one Al(7) atom. In the thirteenth O site, O(13) is bonded to one Al(10), one Al(12), one Al(4), and one Al(6) atom to form a mixture of distorted edge and corner-sharing OAl4 trigonal pyramids. In the fourteenth O site, O(14) is bonded in a trigonal planar geometry to one Al(10), one Al(13), and one Al(9) atom. In the fifteenth O site, O(15) is bonded in a trigonal non-coplanar geometry to one Al(10), one Al(13), and one Al(6) atom. In the sixteenth O site, O(16) is bonded in a trigonal planar geometry to one Al(11), one Al(15), and one Al(9) atom. In the seventeenth O site, O(17) is bonded in a distorted trigonal non-coplanar geometry to one Al(10), one Al(11), and one Al(14) atom. In the eighteenth O site, O(18) is bonded in a distorted rectangular see-saw-like geometry to one Al(12), one Al(4), one Al(6), and one Al(8) atom. In the nineteenth O site, O(19) is bonded in a T-shaped geometry to one Al(12), one Al(13), and one Al(4) atom. In the twentieth O site, O(20) is bonded to one Al(10), one Al(11), one Al(13), and one Al(14) atom to form distorted corner-sharing OAl4 trigonal pyramids. In the twenty-first O site, O(21) is bonded in a 3-coordinate geometry to one Al(11), one Al(2), and one Al(9) atom. In the twenty-second O site, O(22) is bonded in a distorted trigonal non-coplanar geometry to one Al(11), one Al(16), and one Al(2) atom. In the twenty-third O site, O(23) is bonded in a distorted T-shaped geometry to one Al(11), one Al(14), and one Al(9) atom. In the twenty-fourth O site, O(24) is bonded in a distorted trigonal planar geometry to one Al(14), one Al(15), and one Al(16) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Al2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.716
_cell_length_b   5.665
_cell_length_c   16.595
_cell_angle_alpha   62.923
_cell_angle_beta   66.365
_cell_angle_gamma   58.337
_symmetry_Int_Tables_number   1
_cell_volume   397.845
_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
  Al  Al0  1  0.096  0.945  0.150  1.0
  Al  Al1  1  0.336  0.519  0.010  1.0
  Al  Al2  1  0.577  0.430  0.158  1.0
  Al  Al3  1  0.483  0.034  0.509  1.0
  Al  Al4  1  0.480  0.584  0.317  1.0
  Al  Al5  1  0.701  0.466  0.482  1.0
  Al  Al6  1  0.037  0.278  0.295  1.0
  Al  Al7  1  0.640  0.963  0.329  1.0
  Al  Al8  1  0.221  0.094  0.831  1.0
  Al  Al9  1  0.364  0.527  0.665  1.0
  Al  Al10  1  0.433  0.538  0.828  1.0
  Al  Al11  1  0.080  0.786  0.494  1.0
  Al  Al12  1  0.928  0.394  0.645  1.0
  Al  Al13  1  0.811  0.880  0.793  1.0
  Al  Al14  1  0.949  0.417  0.988  1.0
  Al  Al15  1  0.623  0.972  0.993  1.0
  O  O16  1  0.278  0.185  0.056  1.0
  O  O17  1  0.395  0.182  0.248  1.0
  O  O18  1  0.298  0.663  0.089  1.0
  O  O19  1  0.803  0.173  0.087  1.0
  O  O20  1  0.352  0.705  0.221  1.0
  O  O21  1  0.446  0.250  0.388  1.0
  O  O22  1  0.874  0.165  0.242  1.0
  O  O23  1  0.247  0.353  0.551  1.0
  O  O24  1  0.406  0.730  0.404  1.0
  O  O25  1  0.805  0.636  0.071  1.0
  O  O26  1  0.809  0.654  0.270  1.0
  O  O27  1  0.908  0.183  0.425  1.0
  O  O28  1  0.288  0.809  0.554  1.0
  O  O29  1  0.120  0.355  0.723  1.0
  O  O30  1  0.718  0.323  0.601  1.0
  O  O31  1  0.209  0.294  0.892  1.0
  O  O32  1  0.177  0.764  0.742  1.0
  O  O33  1  0.827  0.744  0.426  1.0
  O  O34  1  0.757  0.794  0.583  1.0
  O  O35  1  0.664  0.291  0.755  1.0
  O  O36  1  0.164  0.774  0.914  1.0
  O  O37  1  0.639  0.318  0.926  1.0
  O  O38  1  0.552  0.837  0.778  1.0
  O  O39  1  0.709  0.771  0.918  1.0
[/CIF]
.