The crystal structure described by Al7Te10 crystallizes in the trigonal R32 space group. There are three inequivalent Al sites. In the first Al site, Al(1) is bonded to one Te(1), one Te(2), one Te(3), and one Te(5) atom to form AlTe4 tetrahedra that share  a cornercorner with one Al(3)AlTe3 tetrahedra, corners with three equivalent Al(1)Te4 tetrahedra, and corners with three equivalent Al(2)Te4 tetrahedra. In the second Al site, Al(2) is bonded to one Te(2), one Te(4), and two equivalent Te(1) atoms to form AlTe4 tetrahedra that share  a cornercorner with one Al(3)AlTe3 tetrahedra,  a cornercorner with one Al(2)Te4 tetrahedra, corners with three equivalent Al(1)Te4 tetrahedra, and  an edgeedge with one Al(2)Te4 tetrahedra. In the third Al site, Al(3) is bonded to one Al(3) and three equivalent Te(2) atoms to form distorted corner-sharing AlAlTe3 tetrahedra. There are five inequivalent Te sites. In the first Te site, Te(1) is bonded in a distorted T-shaped geometry to one Al(1) and two equivalent Al(2) atoms. In the second Te site, Te(2) is bonded in a trigonal non-coplanar geometry to one Al(1), one Al(2), and one Al(3) atom. In the third Te site, Te(3) is bonded in a water-like geometry to two equivalent Al(1) atoms. In the fourth Te site, Te(4) is bonded in an L-shaped geometry to two equivalent Al(2) atoms. In the fifth Te site, Te(5) is bonded in a trigonal non-coplanar geometry to three equivalent Al(1) atoms. is represented by the CIF file [CIF]
data_Al7Te10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.418
_cell_length_b   10.418
_cell_length_c   10.418
_cell_angle_alpha   89.684
_cell_angle_beta   89.684
_cell_angle_gamma   89.684
_symmetry_Int_Tables_number   1
_cell_volume   1130.704
_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
  Al  Al0  1  0.888  0.847  0.578  1.0
  Al  Al1  1  0.847  0.578  0.888  1.0
  Al  Al2  1  0.578  0.888  0.847  1.0
  Al  Al3  1  0.422  0.153  0.112  1.0
  Al  Al4  1  0.153  0.112  0.422  1.0
  Al  Al5  1  0.112  0.422  0.153  1.0
  Al  Al6  1  0.165  0.744  0.345  1.0
  Al  Al7  1  0.744  0.345  0.165  1.0
  Al  Al8  1  0.345  0.165  0.744  1.0
  Al  Al9  1  0.655  0.256  0.835  1.0
  Al  Al10  1  0.256  0.835  0.655  1.0
  Al  Al11  1  0.835  0.655  0.256  1.0
  Al  Al12  1  0.572  0.572  0.572  1.0
  Al  Al13  1  0.428  0.428  0.428  1.0
  Te  Te14  1  0.924  0.425  0.327  1.0
  Te  Te15  1  0.327  0.924  0.425  1.0
  Te  Te16  1  0.425  0.327  0.924  1.0
  Te  Te17  1  0.575  0.076  0.673  1.0
  Te  Te18  1  0.673  0.575  0.076  1.0
  Te  Te19  1  0.076  0.673  0.575  1.0
  Te  Te20  1  0.691  0.759  0.440  1.0
  Te  Te21  1  0.759  0.440  0.691  1.0
  Te  Te22  1  0.440  0.691  0.759  1.0
  Te  Te23  1  0.560  0.241  0.309  1.0
  Te  Te24  1  0.241  0.309  0.560  1.0
  Te  Te25  1  0.309  0.560  0.241  1.0
  Te  Te26  1  0.081  0.500  0.919  1.0
  Te  Te27  1  0.500  0.919  0.081  1.0
  Te  Te28  1  0.919  0.081  0.500  1.0
  Te  Te29  1  0.179  0.000  0.821  1.0
  Te  Te30  1  0.000  0.821  0.179  1.0
  Te  Te31  1  0.821  0.179  0.000  1.0
  Te  Te32  1  0.828  0.828  0.828  1.0
  Te  Te33  1  0.172  0.172  0.172  1.0
[/CIF]
.
The crystal structure described by Al7Te10 crystallizes in the trigonal R32 space group. There are three inequivalent Al sites. In the first Al site, Al(1) is bonded to one Te(1), one Te(2), one Te(3), and one Te(5) atom to form AlTe4 tetrahedra that share  a cornercorner with one Al(3)AlTe3 tetrahedra, corners with three equivalent Al(1)Te4 tetrahedra, and corners with three equivalent Al(2)Te4 tetrahedra. In the second Al site, Al(2) is bonded to one Te(2), one Te(4), and two equivalent Te(1) atoms to form AlTe4 tetrahedra that share  a cornercorner with one Al(3)AlTe3 tetrahedra,  a cornercorner with one Al(2)Te4 tetrahedra, corners with three equivalent Al(1)Te4 tetrahedra, and  an edgeedge with one Al(2)Te4 tetrahedra. In the third Al site, Al(3) is bonded to one Al(3) and three equivalent Te(2) atoms to form distorted corner-sharing AlAlTe3 tetrahedra. There are five inequivalent Te sites. In the first Te site, Te(1) is bonded in a distorted T-shaped geometry to one Al(1) and two equivalent Al(2) atoms. In the second Te site, Te(2) is bonded in a trigonal non-coplanar geometry to one Al(1), one Al(2), and one Al(3) atom. In the third Te site, Te(3) is bonded in a water-like geometry to two equivalent Al(1) atoms. In the fourth Te site, Te(4) is bonded in an L-shaped geometry to two equivalent Al(2) atoms. In the fifth Te site, Te(5) is bonded in a trigonal non-coplanar geometry to three equivalent Al(1) atoms. is represented by the CIF file [CIF]
data_Al7Te10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.418
_cell_length_b   10.418
_cell_length_c   10.418
_cell_angle_alpha   89.684
_cell_angle_beta   89.684
_cell_angle_gamma   89.684
_symmetry_Int_Tables_number   1
_cell_volume   1130.704
_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
  Al  Al0  1  0.888  0.847  0.578  1.0
  Al  Al1  1  0.847  0.578  0.888  1.0
  Al  Al2  1  0.578  0.888  0.847  1.0
  Al  Al3  1  0.422  0.153  0.112  1.0
  Al  Al4  1  0.153  0.112  0.422  1.0
  Al  Al5  1  0.112  0.422  0.153  1.0
  Al  Al6  1  0.165  0.744  0.345  1.0
  Al  Al7  1  0.744  0.345  0.165  1.0
  Al  Al8  1  0.345  0.165  0.744  1.0
  Al  Al9  1  0.655  0.256  0.835  1.0
  Al  Al10  1  0.256  0.835  0.655  1.0
  Al  Al11  1  0.835  0.655  0.256  1.0
  Al  Al12  1  0.572  0.572  0.572  1.0
  Al  Al13  1  0.428  0.428  0.428  1.0
  Te  Te14  1  0.924  0.425  0.327  1.0
  Te  Te15  1  0.327  0.924  0.425  1.0
  Te  Te16  1  0.425  0.327  0.924  1.0
  Te  Te17  1  0.575  0.076  0.673  1.0
  Te  Te18  1  0.673  0.575  0.076  1.0
  Te  Te19  1  0.076  0.673  0.575  1.0
  Te  Te20  1  0.691  0.759  0.440  1.0
  Te  Te21  1  0.759  0.440  0.691  1.0
  Te  Te22  1  0.440  0.691  0.759  1.0
  Te  Te23  1  0.560  0.241  0.309  1.0
  Te  Te24  1  0.241  0.309  0.560  1.0
  Te  Te25  1  0.309  0.560  0.241  1.0
  Te  Te26  1  0.081  0.500  0.919  1.0
  Te  Te27  1  0.500  0.919  0.081  1.0
  Te  Te28  1  0.919  0.081  0.500  1.0
  Te  Te29  1  0.179  0.000  0.821  1.0
  Te  Te30  1  0.000  0.821  0.179  1.0
  Te  Te31  1  0.821  0.179  0.000  1.0
  Te  Te32  1  0.828  0.828  0.828  1.0
  Te  Te33  1  0.172  0.172  0.172  1.0
[/CIF]
.