The crystal structure described by Ca3Co2(TeO6)2 crystallizes in the triclinic P1 space group. There are three inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(11), one O(12), one O(2), one O(3), one O(8), and one O(9) atom. In the second Ca site, Ca(2) is bonded in a 8-coordinate geometry to one O(12), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. In the third Ca site, Ca(3) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(2), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(10), one O(11), one O(12), one O(2), one O(4), and one O(6) atom to form CoO6 octahedra that share corners with two equivalent Te(2)O6 octahedra and corners with four equivalent Te(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 21-34°. In the second Co site, Co(2) is bonded to one O(1), one O(3), one O(5), one O(7), one O(8), and one O(9) atom to form CoO6 octahedra that share corners with two equivalent Te(1)O6 octahedra and corners with four equivalent Te(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 20-36°. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to one O(10), one O(12), one O(2), one O(4), one O(5), and one O(9) atom to form TeO6 octahedra that share corners with two equivalent Co(2)O6 octahedra and corners with four equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 21-34°. In the second Te site, Te(2) is bonded to one O(1), one O(11), one O(3), one O(6), one O(7), and one O(8) atom to form TeO6 octahedra that share corners with two equivalent Co(1)O6 octahedra and corners with four equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 20-36°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Ca(1), one Ca(3), one Co(2), and one Te(2) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Ca(1), one Ca(2), one Ca(3), one Co(1), and one Te(1) atom. In the third O site, O(3) is bonded to one Ca(1), one Ca(2), one Co(2), and one Te(2) atom to form distorted OCa2CoTe tetrahedra that share corners with two equivalent O(8)Ca3CoTe trigonal bipyramids,  a cornercorner with one O(4)Ca2CoTe trigonal pyramid,  a cornercorner with one O(7)Ca2CoTe trigonal pyramid,  an edgeedge with one O(5)Ca2CoTe tetrahedra,  an edgeedge with one O(8)Ca3CoTe trigonal bipyramid, and  an edgeedge with one O(7)Ca2CoTe trigonal pyramid. In the fourth O site, O(4) is bonded to one Ca(2), one Ca(3), one Co(1), and one Te(1) atom to form distorted OCa2CoTe trigonal pyramids that share  a cornercorner with one O(3)Ca2CoTe tetrahedra,  a cornercorner with one O(5)Ca2CoTe tetrahedra, corners with two equivalent O(8)Ca3CoTe trigonal bipyramids,  an edgeedge with one O(5)Ca2CoTe tetrahedra, and  an edgeedge with one O(7)Ca2CoTe trigonal pyramid. In the fifth O site, O(5) is bonded to one Ca(2), one Ca(3), one Co(2), and one Te(1) atom to form distorted OCa2CoTe tetrahedra that share corners with three equivalent O(8)Ca3CoTe trigonal bipyramids,  a cornercorner with one O(4)Ca2CoTe trigonal pyramid,  a cornercorner with one O(7)Ca2CoTe trigonal pyramid,  an edgeedge with one O(3)Ca2CoTe tetrahedra,  an edgeedge with one O(4)Ca2CoTe trigonal pyramid, and  an edgeedge with one O(7)Ca2CoTe trigonal pyramid. In the sixth O site, O(6) is bonded in a distorted see-saw-like geometry to one Ca(2), one Ca(3), one Co(1), and one Te(2) atom. In the seventh O site, O(7) is bonded to one Ca(2), one Ca(3), one Co(2), and one Te(2) atom to form distorted OCa2CoTe trigonal pyramids that share  a cornercorner with one O(3)Ca2CoTe tetrahedra,  a cornercorner with one O(5)Ca2CoTe tetrahedra,  an edgeedge with one O(3)Ca2CoTe tetrahedra,  an edgeedge with one O(5)Ca2CoTe tetrahedra, edges with two equivalent O(8)Ca3CoTe trigonal bipyramids, and  an edgeedge with one O(4)Ca2CoTe trigonal pyramid. In the eighth O site, O(8) is bonded to one Ca(1), one Ca(2), one Ca(3), one Co(2), and one Te(2) atom to form a mixture of distorted edge and corner-sharing OCa3CoTe trigonal bipyramids. In the ninth O site, O(9) is bonded in a T-shaped geometry to one Ca(1), one Co(2), and one Te(1) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Ca(1), one Ca(3), one Co(1), and one Te(1) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Ca(1), one Co(1), and one Te(2) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Ca(1), one Ca(2), one Co(1), and one Te(1) atom. is represented by the CIF file [CIF]
data_Ca3Co2(TeO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.387
_cell_length_b   5.505
_cell_length_c   7.820
_cell_angle_alpha   90.602
_cell_angle_beta   90.874
_cell_angle_gamma   92.026
_symmetry_Int_Tables_number   1
_cell_volume   231.711
_cell_formula_units_Z   1
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
  Ca  Ca0  1  0.989  0.052  0.251  1.0
  Ca  Ca1  1  0.008  0.953  0.749  1.0
  Ca  Ca2  1  0.480  0.444  0.753  1.0
  Co  Co3  1  0.502  0.993  0.016  1.0
  Co  Co4  1  0.987  0.501  0.483  1.0
  Te  Te5  1  0.999  0.505  0.006  1.0
  Te  Te6  1  0.498  0.986  0.496  1.0
  O  O7  1  0.717  0.283  0.462  1.0
  O  O8  1  0.199  0.223  0.953  1.0
  O  O9  1  0.801  0.813  0.465  1.0
  O  O10  1  0.290  0.718  0.946  1.0
  O  O11  1  0.909  0.520  0.763  1.0
  O  O12  1  0.583  0.021  0.738  1.0
  O  O13  1  0.283  0.706  0.556  1.0
  O  O14  1  0.220  0.195  0.541  1.0
  O  O15  1  0.087  0.477  0.242  1.0
  O  O16  1  0.709  0.282  0.037  1.0
  O  O17  1  0.408  0.975  0.258  1.0
  O  O18  1  0.821  0.801  0.036  1.0
[/CIF]
.
The crystal structure described by Ca3Co2(TeO6)2 crystallizes in the triclinic P1 space group. There are three inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(11), one O(12), one O(2), one O(3), one O(8), and one O(9) atom. In the second Ca site, Ca(2) is bonded in a 8-coordinate geometry to one O(12), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. In the third Ca site, Ca(3) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(2), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(10), one O(11), one O(12), one O(2), one O(4), and one O(6) atom to form CoO6 octahedra that share corners with two equivalent Te(2)O6 octahedra and corners with four equivalent Te(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 21-34°. In the second Co site, Co(2) is bonded to one O(1), one O(3), one O(5), one O(7), one O(8), and one O(9) atom to form CoO6 octahedra that share corners with two equivalent Te(1)O6 octahedra and corners with four equivalent Te(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 20-36°. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to one O(10), one O(12), one O(2), one O(4), one O(5), and one O(9) atom to form TeO6 octahedra that share corners with two equivalent Co(2)O6 octahedra and corners with four equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 21-34°. In the second Te site, Te(2) is bonded to one O(1), one O(11), one O(3), one O(6), one O(7), and one O(8) atom to form TeO6 octahedra that share corners with two equivalent Co(1)O6 octahedra and corners with four equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 20-36°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Ca(1), one Ca(3), one Co(2), and one Te(2) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Ca(1), one Ca(2), one Ca(3), one Co(1), and one Te(1) atom. In the third O site, O(3) is bonded to one Ca(1), one Ca(2), one Co(2), and one Te(2) atom to form distorted OCa2CoTe tetrahedra that share corners with two equivalent O(8)Ca3CoTe trigonal bipyramids,  a cornercorner with one O(4)Ca2CoTe trigonal pyramid,  a cornercorner with one O(7)Ca2CoTe trigonal pyramid,  an edgeedge with one O(5)Ca2CoTe tetrahedra,  an edgeedge with one O(8)Ca3CoTe trigonal bipyramid, and  an edgeedge with one O(7)Ca2CoTe trigonal pyramid. In the fourth O site, O(4) is bonded to one Ca(2), one Ca(3), one Co(1), and one Te(1) atom to form distorted OCa2CoTe trigonal pyramids that share  a cornercorner with one O(3)Ca2CoTe tetrahedra,  a cornercorner with one O(5)Ca2CoTe tetrahedra, corners with two equivalent O(8)Ca3CoTe trigonal bipyramids,  an edgeedge with one O(5)Ca2CoTe tetrahedra, and  an edgeedge with one O(7)Ca2CoTe trigonal pyramid. In the fifth O site, O(5) is bonded to one Ca(2), one Ca(3), one Co(2), and one Te(1) atom to form distorted OCa2CoTe tetrahedra that share corners with three equivalent O(8)Ca3CoTe trigonal bipyramids,  a cornercorner with one O(4)Ca2CoTe trigonal pyramid,  a cornercorner with one O(7)Ca2CoTe trigonal pyramid,  an edgeedge with one O(3)Ca2CoTe tetrahedra,  an edgeedge with one O(4)Ca2CoTe trigonal pyramid, and  an edgeedge with one O(7)Ca2CoTe trigonal pyramid. In the sixth O site, O(6) is bonded in a distorted see-saw-like geometry to one Ca(2), one Ca(3), one Co(1), and one Te(2) atom. In the seventh O site, O(7) is bonded to one Ca(2), one Ca(3), one Co(2), and one Te(2) atom to form distorted OCa2CoTe trigonal pyramids that share  a cornercorner with one O(3)Ca2CoTe tetrahedra,  a cornercorner with one O(5)Ca2CoTe tetrahedra,  an edgeedge with one O(3)Ca2CoTe tetrahedra,  an edgeedge with one O(5)Ca2CoTe tetrahedra, edges with two equivalent O(8)Ca3CoTe trigonal bipyramids, and  an edgeedge with one O(4)Ca2CoTe trigonal pyramid. In the eighth O site, O(8) is bonded to one Ca(1), one Ca(2), one Ca(3), one Co(2), and one Te(2) atom to form a mixture of distorted edge and corner-sharing OCa3CoTe trigonal bipyramids. In the ninth O site, O(9) is bonded in a T-shaped geometry to one Ca(1), one Co(2), and one Te(1) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Ca(1), one Ca(3), one Co(1), and one Te(1) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Ca(1), one Co(1), and one Te(2) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Ca(1), one Ca(2), one Co(1), and one Te(1) atom. is represented by the CIF file [CIF]
data_Ca3Co2(TeO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.387
_cell_length_b   5.505
_cell_length_c   7.820
_cell_angle_alpha   90.602
_cell_angle_beta   90.874
_cell_angle_gamma   92.026
_symmetry_Int_Tables_number   1
_cell_volume   231.711
_cell_formula_units_Z   1
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
  Ca  Ca0  1  0.989  0.052  0.251  1.0
  Ca  Ca1  1  0.008  0.953  0.749  1.0
  Ca  Ca2  1  0.480  0.444  0.753  1.0
  Co  Co3  1  0.502  0.993  0.016  1.0
  Co  Co4  1  0.987  0.501  0.483  1.0
  Te  Te5  1  0.999  0.505  0.006  1.0
  Te  Te6  1  0.498  0.986  0.496  1.0
  O  O7  1  0.717  0.283  0.462  1.0
  O  O8  1  0.199  0.223  0.953  1.0
  O  O9  1  0.801  0.813  0.465  1.0
  O  O10  1  0.290  0.718  0.946  1.0
  O  O11  1  0.909  0.520  0.763  1.0
  O  O12  1  0.583  0.021  0.738  1.0
  O  O13  1  0.283  0.706  0.556  1.0
  O  O14  1  0.220  0.195  0.541  1.0
  O  O15  1  0.087  0.477  0.242  1.0
  O  O16  1  0.709  0.282  0.037  1.0
  O  O17  1  0.408  0.975  0.258  1.0
  O  O18  1  0.821  0.801  0.036  1.0
[/CIF]
.