The structure described by Tm4Zr3O12 crystallizes in the triclinic P-1 space group. There are four inequivalent Tm sites. In the first Tm site, Tm(1) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(3), one O(7), one O(9), and two equivalent O(5) atoms. In the second Tm site, Tm(2) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(12), one O(5), one O(6), one O(7), and one O(9) atom. In the third Tm site, Tm(3) is bonded to one O(10), one O(11), one O(12), one O(3), one O(6), one O(8), and one O(9) atom to form distorted TmO7 pentagonal bipyramids that share  a cornercorner with one Zr(1)O6 octahedra and  an edgeedge with one Zr(1)O6 octahedra. The corner-sharing octahedral tilt angles are 52°. In the fourth Tm site, Tm(4) is bonded in a 7-coordinate geometry to one O(10), one O(12), one O(8), two equivalent O(11), and two equivalent O(4) atoms. There are three inequivalent Zr sites. In the first Zr site, Zr(1) is bonded to one O(1), one O(10), one O(2), one O(3), one O(4), and one O(6) atom to form ZrO6 octahedra that share  a cornercorner with one Tm(3)O7 pentagonal bipyramid and  an edgeedge with one Tm(3)O7 pentagonal bipyramid. In the second Zr site, Zr(2) is bonded in a 7-coordinate geometry to one O(1), one O(11), one O(12), one O(3), one O(4), and two equivalent O(8) atoms. In the third Zr site, Zr(3) is bonded in a 6-coordinate geometry to one O(2), one O(5), one O(6), one O(9), and two equivalent O(7) atoms. There are twelve inequivalent O sites. In the first O site, O(1) is bonded to one Tm(1), one Tm(2), one Zr(1), and one Zr(2) atom to form distorted OTm2Zr2 tetrahedra that share  a cornercorner with one O(11)Tm3Zr tetrahedra,  a cornercorner with one O(5)Tm3Zr tetrahedra, corners with two equivalent O(7)Tm2Zr2 tetrahedra, corners with two equivalent O(8)Tm2Zr2 tetrahedra, corners with two equivalent O(10)Tm3Zr tetrahedra, corners with two equivalent O(9)Tm3Zr tetrahedra,  an edgeedge with one O(4)Tm2Zr2 tetrahedra,  an edgeedge with one O(6)Tm2Zr2 tetrahedra,  an edgeedge with one O(12)Tm3Zr tetrahedra, and  an edgeedge with one O(5)Tm3Zr tetrahedra. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Tm(1), one Zr(1), and one Zr(3) atom. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one Tm(1), one Tm(3), one Zr(1), and one Zr(2) atom. In the fourth O site, O(4) is bonded to two equivalent Tm(4), one Zr(1), and one Zr(2) atom to form distorted OTm2Zr2 tetrahedra that share  a cornercorner with one O(6)Tm2Zr2 tetrahedra,  a cornercorner with one O(10)Tm3Zr tetrahedra, corners with two equivalent O(8)Tm2Zr2 tetrahedra, corners with three equivalent O(11)Tm3Zr tetrahedra, corners with three equivalent O(12)Tm3Zr tetrahedra,  an edgeedge with one O(1)Tm2Zr2 tetrahedra,  an edgeedge with one O(4)Tm2Zr2 tetrahedra,  an edgeedge with one O(8)Tm2Zr2 tetrahedra,  an edgeedge with one O(10)Tm3Zr tetrahedra, and  an edgeedge with one O(11)Tm3Zr tetrahedra. In the fifth O site, O(5) is bonded to one Tm(2), two equivalent Tm(1), and one Zr(3) atom to form distorted OTm3Zr tetrahedra that share  a cornercorner with one O(1)Tm2Zr2 tetrahedra,  a cornercorner with one O(10)Tm3Zr tetrahedra,  a cornercorner with one O(12)Tm3Zr tetrahedra, corners with two equivalent O(6)Tm2Zr2 tetrahedra, corners with two equivalent O(9)Tm3Zr tetrahedra, corners with three equivalent O(7)Tm2Zr2 tetrahedra,  an edgeedge with one O(1)Tm2Zr2 tetrahedra,  an edgeedge with one O(7)Tm2Zr2 tetrahedra,  an edgeedge with one O(5)Tm3Zr tetrahedra, and  an edgeedge with one O(9)Tm3Zr tetrahedra. In the sixth O site, O(6) is bonded to one Tm(2), one Tm(3), one Zr(1), and one Zr(3) atom to form distorted OTm2Zr2 tetrahedra that share  a cornercorner with one O(4)Tm2Zr2 tetrahedra,  a cornercorner with one O(7)Tm2Zr2 tetrahedra,  a cornercorner with one O(8)Tm2Zr2 tetrahedra,  a cornercorner with one O(10)Tm3Zr tetrahedra,  a cornercorner with one O(11)Tm3Zr tetrahedra,  a cornercorner with one O(9)Tm3Zr tetrahedra, corners with two equivalent O(12)Tm3Zr tetrahedra, corners with two equivalent O(5)Tm3Zr tetrahedra,  an edgeedge with one O(1)Tm2Zr2 tetrahedra,  an edgeedge with one O(7)Tm2Zr2 tetrahedra,  an edgeedge with one O(10)Tm3Zr tetrahedra, and  an edgeedge with one O(9)Tm3Zr tetrahedra. In the seventh O site, O(7) is bonded to one Tm(1), one Tm(2), and two equivalent Zr(3) atoms to form OTm2Zr2 tetrahedra that share  a cornercorner with one O(6)Tm2Zr2 tetrahedra,  a cornercorner with one O(10)Tm3Zr tetrahedra,  a cornercorner with one O(12)Tm3Zr tetrahedra, corners with two equivalent O(1)Tm2Zr2 tetrahedra, corners with two equivalent O(9)Tm3Zr tetrahedra, corners with three equivalent O(5)Tm3Zr tetrahedra,  an edgeedge with one O(6)Tm2Zr2 tetrahedra,  an edgeedge with one O(7)Tm2Zr2 tetrahedra,  an edgeedge with one O(5)Tm3Zr tetrahedra, and  an edgeedge with one O(9)Tm3Zr tetrahedra. In the eighth O site, O(8) is bonded to one Tm(3), one Tm(4), and two equivalent Zr(2) atoms to form OTm2Zr2 tetrahedra that share  a cornercorner with one O(6)Tm2Zr2 tetrahedra,  a cornercorner with one O(9)Tm3Zr tetrahedra, corners with two equivalent O(1)Tm2Zr2 tetrahedra, corners with two equivalent O(4)Tm2Zr2 tetrahedra, corners with two equivalent O(10)Tm3Zr tetrahedra, corners with two equivalent O(12)Tm3Zr tetrahedra, corners with three equivalent O(11)Tm3Zr tetrahedra,  an edgeedge with one O(4)Tm2Zr2 tetrahedra,  an edgeedge with one O(8)Tm2Zr2 tetrahedra,  an edgeedge with one O(11)Tm3Zr tetrahedra, and  an edgeedge with one O(12)Tm3Zr tetrahedra. In the ninth O site, O(9) is bonded to one Tm(1), one Tm(2), one Tm(3), and one Zr(3) atom to form OTm3Zr tetrahedra that share  a cornercorner with one O(6)Tm2Zr2 tetrahedra,  a cornercorner with one O(8)Tm2Zr2 tetrahedra,  a cornercorner with one O(11)Tm3Zr tetrahedra, corners with two equivalent O(1)Tm2Zr2 tetrahedra, corners with two equivalent O(7)Tm2Zr2 tetrahedra, corners with two equivalent O(10)Tm3Zr tetrahedra, corners with two equivalent O(5)Tm3Zr tetrahedra,  an edgeedge with one O(6)Tm2Zr2 tetrahedra,  an edgeedge with one O(7)Tm2Zr2 tetrahedra,  an edgeedge with one O(12)Tm3Zr tetrahedra, and  an edgeedge with one O(5)Tm3Zr tetrahedra. In the tenth O site, O(10) is bonded to one Tm(2), one Tm(3), one Tm(4), and one Zr(1) atom to form distorted OTm3Zr tetrahedra that share  a cornercorner with one O(4)Tm2Zr2 tetrahedra,  a cornercorner with one O(6)Tm2Zr2 tetrahedra,  a cornercorner with one O(7)Tm2Zr2 tetrahedra,  a cornercorner with one O(11)Tm3Zr tetrahedra,  a cornercorner with one O(12)Tm3Zr tetrahedra,  a cornercorner with one O(5)Tm3Zr tetrahedra, corners with two equivalent O(1)Tm2Zr2 tetrahedra, corners with two equivalent O(8)Tm2Zr2 tetrahedra, corners with two equivalent O(9)Tm3Zr tetrahedra,  an edgeedge with one O(4)Tm2Zr2 tetrahedra,  an edgeedge with one O(6)Tm2Zr2 tetrahedra,  an edgeedge with one O(11)Tm3Zr tetrahedra, and  an edgeedge with one O(12)Tm3Zr tetrahedra. In the eleventh O site, O(11) is bonded to one Tm(3), two equivalent Tm(4), and one Zr(2) atom to form OTm3Zr tetrahedra that share  a cornercorner with one O(1)Tm2Zr2 tetrahedra,  a cornercorner with one O(6)Tm2Zr2 tetrahedra,  a cornercorner with one O(10)Tm3Zr tetrahedra,  a cornercorner with one O(9)Tm3Zr tetrahedra, corners with two equivalent O(12)Tm3Zr tetrahedra, corners with three equivalent O(4)Tm2Zr2 tetrahedra, corners with three equivalent O(8)Tm2Zr2 tetrahedra,  an edgeedge with one O(4)Tm2Zr2 tetrahedra,  an edgeedge with one O(8)Tm2Zr2 tetrahedra,  an edgeedge with one O(10)Tm3Zr tetrahedra,  an edgeedge with one O(11)Tm3Zr tetrahedra, and  an edgeedge with one O(12)Tm3Zr tetrahedra. In the twelfth O site, O(12) is bonded to one Tm(2), one Tm(3), one Tm(4), and one Zr(2) atom to form distorted OTm3Zr tetrahedra that share  a cornercorner with one O(7)Tm2Zr2 tetrahedra,  a cornercorner with one O(10)Tm3Zr tetrahedra,  a cornercorner with one O(5)Tm3Zr tetrahedra, corners with two equivalent O(6)Tm2Zr2 tetrahedra, corners with two equivalent O(8)Tm2Zr2 tetrahedra, corners with two equivalent O(11)Tm3Zr tetrahedra, corners with three equivalent O(4)Tm2Zr2 tetrahedra,  an edgeedge with one O(1)Tm2Zr2 tetrahedra,  an edgeedge with one O(8)Tm2Zr2 tetrahedra,  an edgeedge with one O(10)Tm3Zr tetrahedra,  an edgeedge with one O(11)Tm3Zr tetrahedra, and  an edgeedge with one O(9)Tm3Zr tetrahedra. is represented by the CIF file [CIF]
data_Tm4Zr3O12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.297
_cell_length_b   6.350
_cell_length_c   12.640
_cell_angle_alpha   99.317
_cell_angle_beta   99.360
_cell_angle_gamma   99.385
_symmetry_Int_Tables_number   1
_cell_volume   482.781
_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
  Tm  Tm0  1  0.390  0.864  0.097  1.0
  Tm  Tm1  1  0.311  0.609  0.818  1.0
  Tm  Tm2  1  0.300  0.611  0.319  1.0
  Tm  Tm3  1  0.859  0.691  0.447  1.0
  Tm  Tm4  1  0.689  0.391  0.182  1.0
  Tm  Tm5  1  0.141  0.309  0.553  1.0
  Tm  Tm6  1  0.610  0.136  0.903  1.0
  Tm  Tm7  1  0.700  0.389  0.681  1.0
  Zr  Zr8  1  0.993  0.994  0.248  1.0
  Zr  Zr9  1  0.392  0.856  0.594  1.0
  Zr  Zr10  1  0.007  0.006  0.752  1.0
  Zr  Zr11  1  0.855  0.678  0.946  1.0
  Zr  Zr12  1  0.145  0.322  0.054  1.0
  Zr  Zr13  1  0.608  0.144  0.406  1.0
  O  O14  1  0.321  0.942  0.786  1.0
  O  O15  1  0.039  0.898  0.089  1.0
  O  O16  1  0.318  0.959  0.295  1.0
  O  O17  1  0.073  0.921  0.593  1.0
  O  O18  1  0.587  0.820  0.962  1.0
  O  O19  1  0.923  0.691  0.790  1.0
  O  O20  1  0.174  0.575  0.965  1.0
  O  O21  1  0.569  0.829  0.462  1.0
  O  O22  1  0.411  0.569  0.158  1.0
  O  O23  1  0.925  0.681  0.279  1.0
  O  O24  1  0.589  0.431  0.842  1.0
  O  O25  1  0.184  0.590  0.469  1.0
  O  O26  1  0.826  0.425  0.035  1.0
  O  O27  1  0.427  0.582  0.658  1.0
  O  O28  1  0.077  0.309  0.210  1.0
  O  O29  1  0.573  0.418  0.342  1.0
  O  O30  1  0.413  0.180  0.038  1.0
  O  O31  1  0.816  0.410  0.531  1.0
  O  O32  1  0.075  0.319  0.721  1.0
  O  O33  1  0.431  0.171  0.538  1.0
  O  O34  1  0.961  0.102  0.911  1.0
  O  O35  1  0.679  0.058  0.214  1.0
  O  O36  1  0.927  0.079  0.407  1.0
  O  O37  1  0.682  0.041  0.705  1.0
[/CIF]
.
The structure described by Tm4Zr3O12 crystallizes in the triclinic P-1 space group. There are four inequivalent Tm sites. In the first Tm site, Tm(1) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(3), one O(7), one O(9), and two equivalent O(5) atoms. In the second Tm site, Tm(2) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(12), one O(5), one O(6), one O(7), and one O(9) atom. In the third Tm site, Tm(3) is bonded to one O(10), one O(11), one O(12), one O(3), one O(6), one O(8), and one O(9) atom to form distorted TmO7 pentagonal bipyramids that share  a cornercorner with one Zr(1)O6 octahedra and  an edgeedge with one Zr(1)O6 octahedra. The corner-sharing octahedral tilt angles are 52°. In the fourth Tm site, Tm(4) is bonded in a 7-coordinate geometry to one O(10), one O(12), one O(8), two equivalent O(11), and two equivalent O(4) atoms. There are three inequivalent Zr sites. In the first Zr site, Zr(1) is bonded to one O(1), one O(10), one O(2), one O(3), one O(4), and one O(6) atom to form ZrO6 octahedra that share  a cornercorner with one Tm(3)O7 pentagonal bipyramid and  an edgeedge with one Tm(3)O7 pentagonal bipyramid. In the second Zr site, Zr(2) is bonded in a 7-coordinate geometry to one O(1), one O(11), one O(12), one O(3), one O(4), and two equivalent O(8) atoms. In the third Zr site, Zr(3) is bonded in a 6-coordinate geometry to one O(2), one O(5), one O(6), one O(9), and two equivalent O(7) atoms. There are twelve inequivalent O sites. In the first O site, O(1) is bonded to one Tm(1), one Tm(2), one Zr(1), and one Zr(2) atom to form distorted OTm2Zr2 tetrahedra that share  a cornercorner with one O(11)Tm3Zr tetrahedra,  a cornercorner with one O(5)Tm3Zr tetrahedra, corners with two equivalent O(7)Tm2Zr2 tetrahedra, corners with two equivalent O(8)Tm2Zr2 tetrahedra, corners with two equivalent O(10)Tm3Zr tetrahedra, corners with two equivalent O(9)Tm3Zr tetrahedra,  an edgeedge with one O(4)Tm2Zr2 tetrahedra,  an edgeedge with one O(6)Tm2Zr2 tetrahedra,  an edgeedge with one O(12)Tm3Zr tetrahedra, and  an edgeedge with one O(5)Tm3Zr tetrahedra. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Tm(1), one Zr(1), and one Zr(3) atom. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one Tm(1), one Tm(3), one Zr(1), and one Zr(2) atom. In the fourth O site, O(4) is bonded to two equivalent Tm(4), one Zr(1), and one Zr(2) atom to form distorted OTm2Zr2 tetrahedra that share  a cornercorner with one O(6)Tm2Zr2 tetrahedra,  a cornercorner with one O(10)Tm3Zr tetrahedra, corners with two equivalent O(8)Tm2Zr2 tetrahedra, corners with three equivalent O(11)Tm3Zr tetrahedra, corners with three equivalent O(12)Tm3Zr tetrahedra,  an edgeedge with one O(1)Tm2Zr2 tetrahedra,  an edgeedge with one O(4)Tm2Zr2 tetrahedra,  an edgeedge with one O(8)Tm2Zr2 tetrahedra,  an edgeedge with one O(10)Tm3Zr tetrahedra, and  an edgeedge with one O(11)Tm3Zr tetrahedra. In the fifth O site, O(5) is bonded to one Tm(2), two equivalent Tm(1), and one Zr(3) atom to form distorted OTm3Zr tetrahedra that share  a cornercorner with one O(1)Tm2Zr2 tetrahedra,  a cornercorner with one O(10)Tm3Zr tetrahedra,  a cornercorner with one O(12)Tm3Zr tetrahedra, corners with two equivalent O(6)Tm2Zr2 tetrahedra, corners with two equivalent O(9)Tm3Zr tetrahedra, corners with three equivalent O(7)Tm2Zr2 tetrahedra,  an edgeedge with one O(1)Tm2Zr2 tetrahedra,  an edgeedge with one O(7)Tm2Zr2 tetrahedra,  an edgeedge with one O(5)Tm3Zr tetrahedra, and  an edgeedge with one O(9)Tm3Zr tetrahedra. In the sixth O site, O(6) is bonded to one Tm(2), one Tm(3), one Zr(1), and one Zr(3) atom to form distorted OTm2Zr2 tetrahedra that share  a cornercorner with one O(4)Tm2Zr2 tetrahedra,  a cornercorner with one O(7)Tm2Zr2 tetrahedra,  a cornercorner with one O(8)Tm2Zr2 tetrahedra,  a cornercorner with one O(10)Tm3Zr tetrahedra,  a cornercorner with one O(11)Tm3Zr tetrahedra,  a cornercorner with one O(9)Tm3Zr tetrahedra, corners with two equivalent O(12)Tm3Zr tetrahedra, corners with two equivalent O(5)Tm3Zr tetrahedra,  an edgeedge with one O(1)Tm2Zr2 tetrahedra,  an edgeedge with one O(7)Tm2Zr2 tetrahedra,  an edgeedge with one O(10)Tm3Zr tetrahedra, and  an edgeedge with one O(9)Tm3Zr tetrahedra. In the seventh O site, O(7) is bonded to one Tm(1), one Tm(2), and two equivalent Zr(3) atoms to form OTm2Zr2 tetrahedra that share  a cornercorner with one O(6)Tm2Zr2 tetrahedra,  a cornercorner with one O(10)Tm3Zr tetrahedra,  a cornercorner with one O(12)Tm3Zr tetrahedra, corners with two equivalent O(1)Tm2Zr2 tetrahedra, corners with two equivalent O(9)Tm3Zr tetrahedra, corners with three equivalent O(5)Tm3Zr tetrahedra,  an edgeedge with one O(6)Tm2Zr2 tetrahedra,  an edgeedge with one O(7)Tm2Zr2 tetrahedra,  an edgeedge with one O(5)Tm3Zr tetrahedra, and  an edgeedge with one O(9)Tm3Zr tetrahedra. In the eighth O site, O(8) is bonded to one Tm(3), one Tm(4), and two equivalent Zr(2) atoms to form OTm2Zr2 tetrahedra that share  a cornercorner with one O(6)Tm2Zr2 tetrahedra,  a cornercorner with one O(9)Tm3Zr tetrahedra, corners with two equivalent O(1)Tm2Zr2 tetrahedra, corners with two equivalent O(4)Tm2Zr2 tetrahedra, corners with two equivalent O(10)Tm3Zr tetrahedra, corners with two equivalent O(12)Tm3Zr tetrahedra, corners with three equivalent O(11)Tm3Zr tetrahedra,  an edgeedge with one O(4)Tm2Zr2 tetrahedra,  an edgeedge with one O(8)Tm2Zr2 tetrahedra,  an edgeedge with one O(11)Tm3Zr tetrahedra, and  an edgeedge with one O(12)Tm3Zr tetrahedra. In the ninth O site, O(9) is bonded to one Tm(1), one Tm(2), one Tm(3), and one Zr(3) atom to form OTm3Zr tetrahedra that share  a cornercorner with one O(6)Tm2Zr2 tetrahedra,  a cornercorner with one O(8)Tm2Zr2 tetrahedra,  a cornercorner with one O(11)Tm3Zr tetrahedra, corners with two equivalent O(1)Tm2Zr2 tetrahedra, corners with two equivalent O(7)Tm2Zr2 tetrahedra, corners with two equivalent O(10)Tm3Zr tetrahedra, corners with two equivalent O(5)Tm3Zr tetrahedra,  an edgeedge with one O(6)Tm2Zr2 tetrahedra,  an edgeedge with one O(7)Tm2Zr2 tetrahedra,  an edgeedge with one O(12)Tm3Zr tetrahedra, and  an edgeedge with one O(5)Tm3Zr tetrahedra. In the tenth O site, O(10) is bonded to one Tm(2), one Tm(3), one Tm(4), and one Zr(1) atom to form distorted OTm3Zr tetrahedra that share  a cornercorner with one O(4)Tm2Zr2 tetrahedra,  a cornercorner with one O(6)Tm2Zr2 tetrahedra,  a cornercorner with one O(7)Tm2Zr2 tetrahedra,  a cornercorner with one O(11)Tm3Zr tetrahedra,  a cornercorner with one O(12)Tm3Zr tetrahedra,  a cornercorner with one O(5)Tm3Zr tetrahedra, corners with two equivalent O(1)Tm2Zr2 tetrahedra, corners with two equivalent O(8)Tm2Zr2 tetrahedra, corners with two equivalent O(9)Tm3Zr tetrahedra,  an edgeedge with one O(4)Tm2Zr2 tetrahedra,  an edgeedge with one O(6)Tm2Zr2 tetrahedra,  an edgeedge with one O(11)Tm3Zr tetrahedra, and  an edgeedge with one O(12)Tm3Zr tetrahedra. In the eleventh O site, O(11) is bonded to one Tm(3), two equivalent Tm(4), and one Zr(2) atom to form OTm3Zr tetrahedra that share  a cornercorner with one O(1)Tm2Zr2 tetrahedra,  a cornercorner with one O(6)Tm2Zr2 tetrahedra,  a cornercorner with one O(10)Tm3Zr tetrahedra,  a cornercorner with one O(9)Tm3Zr tetrahedra, corners with two equivalent O(12)Tm3Zr tetrahedra, corners with three equivalent O(4)Tm2Zr2 tetrahedra, corners with three equivalent O(8)Tm2Zr2 tetrahedra,  an edgeedge with one O(4)Tm2Zr2 tetrahedra,  an edgeedge with one O(8)Tm2Zr2 tetrahedra,  an edgeedge with one O(10)Tm3Zr tetrahedra,  an edgeedge with one O(11)Tm3Zr tetrahedra, and  an edgeedge with one O(12)Tm3Zr tetrahedra. In the twelfth O site, O(12) is bonded to one Tm(2), one Tm(3), one Tm(4), and one Zr(2) atom to form distorted OTm3Zr tetrahedra that share  a cornercorner with one O(7)Tm2Zr2 tetrahedra,  a cornercorner with one O(10)Tm3Zr tetrahedra,  a cornercorner with one O(5)Tm3Zr tetrahedra, corners with two equivalent O(6)Tm2Zr2 tetrahedra, corners with two equivalent O(8)Tm2Zr2 tetrahedra, corners with two equivalent O(11)Tm3Zr tetrahedra, corners with three equivalent O(4)Tm2Zr2 tetrahedra,  an edgeedge with one O(1)Tm2Zr2 tetrahedra,  an edgeedge with one O(8)Tm2Zr2 tetrahedra,  an edgeedge with one O(10)Tm3Zr tetrahedra,  an edgeedge with one O(11)Tm3Zr tetrahedra, and  an edgeedge with one O(9)Tm3Zr tetrahedra. is represented by the CIF file [CIF]
data_Tm4Zr3O12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.297
_cell_length_b   6.350
_cell_length_c   12.640
_cell_angle_alpha   99.317
_cell_angle_beta   99.360
_cell_angle_gamma   99.385
_symmetry_Int_Tables_number   1
_cell_volume   482.781
_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
  Tm  Tm0  1  0.390  0.864  0.097  1.0
  Tm  Tm1  1  0.311  0.609  0.818  1.0
  Tm  Tm2  1  0.300  0.611  0.319  1.0
  Tm  Tm3  1  0.859  0.691  0.447  1.0
  Tm  Tm4  1  0.689  0.391  0.182  1.0
  Tm  Tm5  1  0.141  0.309  0.553  1.0
  Tm  Tm6  1  0.610  0.136  0.903  1.0
  Tm  Tm7  1  0.700  0.389  0.681  1.0
  Zr  Zr8  1  0.993  0.994  0.248  1.0
  Zr  Zr9  1  0.392  0.856  0.594  1.0
  Zr  Zr10  1  0.007  0.006  0.752  1.0
  Zr  Zr11  1  0.855  0.678  0.946  1.0
  Zr  Zr12  1  0.145  0.322  0.054  1.0
  Zr  Zr13  1  0.608  0.144  0.406  1.0
  O  O14  1  0.321  0.942  0.786  1.0
  O  O15  1  0.039  0.898  0.089  1.0
  O  O16  1  0.318  0.959  0.295  1.0
  O  O17  1  0.073  0.921  0.593  1.0
  O  O18  1  0.587  0.820  0.962  1.0
  O  O19  1  0.923  0.691  0.790  1.0
  O  O20  1  0.174  0.575  0.965  1.0
  O  O21  1  0.569  0.829  0.462  1.0
  O  O22  1  0.411  0.569  0.158  1.0
  O  O23  1  0.925  0.681  0.279  1.0
  O  O24  1  0.589  0.431  0.842  1.0
  O  O25  1  0.184  0.590  0.469  1.0
  O  O26  1  0.826  0.425  0.035  1.0
  O  O27  1  0.427  0.582  0.658  1.0
  O  O28  1  0.077  0.309  0.210  1.0
  O  O29  1  0.573  0.418  0.342  1.0
  O  O30  1  0.413  0.180  0.038  1.0
  O  O31  1  0.816  0.410  0.531  1.0
  O  O32  1  0.075  0.319  0.721  1.0
  O  O33  1  0.431  0.171  0.538  1.0
  O  O34  1  0.961  0.102  0.911  1.0
  O  O35  1  0.679  0.058  0.214  1.0
  O  O36  1  0.927  0.079  0.407  1.0
  O  O37  1  0.682  0.041  0.705  1.0
[/CIF]
.