The material described by ErGdO3 is Spinel-like structured and crystallizes in the monoclinic C2 space group. There are five inequivalent Er sites. In the first Er site, Er(1) is bonded to one O(1), one O(3), one O(5), one O(6), one O(8), and one O(9) atom to form distorted ErO6 octahedra that share  a cornercorner with one Er(4)O6 octahedra,  a cornercorner with one Gd(1)O6 octahedra,  a cornercorner with one Gd(4)O6 octahedra,  a cornercorner with one Gd(5)O6 octahedra, corners with two equivalent Er(5)O6 octahedra,  an edgeedge with one Er(3)O6 octahedra,  an edgeedge with one Gd(1)O6 octahedra,  an edgeedge with one Gd(3)O6 octahedra,  an edgeedge with one Gd(5)O6 octahedra, and edges with two equivalent Gd(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-59°. In the second Er site, Er(2) is bonded to one O(10), one O(11), one O(12), one O(2), one O(4), and one O(7) atom to form distorted ErO6 octahedra that share  a cornercorner with one Er(3)O6 octahedra,  a cornercorner with one Gd(1)O6 octahedra,  a cornercorner with one Gd(3)O6 octahedra,  a cornercorner with one Gd(5)O6 octahedra, corners with two equivalent Gd(2)O6 octahedra,  an edgeedge with one Er(4)O6 octahedra,  an edgeedge with one Gd(1)O6 octahedra,  an edgeedge with one Gd(4)O6 octahedra,  an edgeedge with one Gd(5)O6 octahedra, and edges with two equivalent Er(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-56°. In the third Er site, Er(3) is bonded to two equivalent O(12), two equivalent O(3), and two equivalent O(9) atoms to form distorted ErO6 octahedra that share corners with two equivalent Er(2)O6 octahedra, corners with two equivalent Gd(1)O6 octahedra, corners with two equivalent Gd(2)O6 octahedra, edges with two equivalent Er(1)O6 octahedra, edges with two equivalent Er(5)O6 octahedra, and edges with two equivalent Gd(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-57°. In the fourth Er site, Er(4) is bonded to two equivalent O(10), two equivalent O(2), and two equivalent O(6) atoms to form distorted ErO6 octahedra that share corners with two equivalent Er(1)O6 octahedra, corners with two equivalent Er(5)O6 octahedra, corners with two equivalent Gd(5)O6 octahedra, edges with two equivalent Er(2)O6 octahedra, edges with two equivalent Gd(1)O6 octahedra, and edges with two equivalent Gd(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-58°. In the fifth Er site, Er(5) is bonded to one O(11), one O(12), one O(2), one O(4), one O(8), and one O(9) atom to form distorted ErO6 octahedra that share  a cornercorner with one Er(4)O6 octahedra,  a cornercorner with one Gd(1)O6 octahedra,  a cornercorner with one Gd(4)O6 octahedra,  a cornercorner with one Gd(5)O6 octahedra, corners with two equivalent Er(1)O6 octahedra,  an edgeedge with one Er(3)O6 octahedra,  an edgeedge with one Gd(1)O6 octahedra,  an edgeedge with one Gd(3)O6 octahedra,  an edgeedge with one Gd(5)O6 octahedra, and edges with two equivalent Er(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-57°. There are five inequivalent Gd sites. In the first Gd site, Gd(1) is bonded to one O(1), one O(10), one O(12), one O(2), one O(5), and one O(8) atom to form GdO6 octahedra that share  a cornercorner with one Er(1)O6 octahedra,  a cornercorner with one Er(2)O6 octahedra,  a cornercorner with one Er(3)O6 octahedra,  a cornercorner with one Er(5)O6 octahedra,  a cornercorner with one Gd(2)O6 octahedra,  a cornercorner with one Gd(4)O6 octahedra,  an edgeedge with one Er(1)O6 octahedra,  an edgeedge with one Er(2)O6 octahedra,  an edgeedge with one Er(4)O6 octahedra,  an edgeedge with one Er(5)O6 octahedra,  an edgeedge with one Gd(2)O6 octahedra, and  an edgeedge with one Gd(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 56-59°. In the second Gd site, Gd(2) is bonded to one O(1), one O(10), one O(3), one O(5), one O(6), and one O(7) atom to form distorted GdO6 octahedra that share  a cornercorner with one Er(3)O6 octahedra,  a cornercorner with one Gd(1)O6 octahedra,  a cornercorner with one Gd(3)O6 octahedra,  a cornercorner with one Gd(5)O6 octahedra, corners with two equivalent Er(2)O6 octahedra,  an edgeedge with one Er(4)O6 octahedra,  an edgeedge with one Gd(1)O6 octahedra,  an edgeedge with one Gd(4)O6 octahedra,  an edgeedge with one Gd(5)O6 octahedra, and edges with two equivalent Er(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-58°. In the third Gd site, Gd(3) is bonded to two equivalent O(11), two equivalent O(5), and two equivalent O(8) atoms to form distorted GdO6 octahedra that share corners with two equivalent Er(2)O6 octahedra, corners with two equivalent Gd(2)O6 octahedra, corners with two equivalent Gd(5)O6 octahedra, edges with two equivalent Er(1)O6 octahedra, edges with two equivalent Er(5)O6 octahedra, and edges with two equivalent Gd(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-58°. In the fourth Gd site, Gd(4) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(7) atoms to form distorted GdO6 octahedra that share corners with two equivalent Er(1)O6 octahedra, corners with two equivalent Er(5)O6 octahedra, corners with two equivalent Gd(1)O6 octahedra, edges with two equivalent Er(2)O6 octahedra, edges with two equivalent Gd(2)O6 octahedra, and edges with two equivalent Gd(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-59°. In the fifth Gd site, Gd(5) is bonded to one O(11), one O(3), one O(4), one O(6), one O(7), and one O(9) atom to form GdO6 octahedra that share  a cornercorner with one Er(1)O6 octahedra,  a cornercorner with one Er(2)O6 octahedra,  a cornercorner with one Er(4)O6 octahedra,  a cornercorner with one Er(5)O6 octahedra,  a cornercorner with one Gd(2)O6 octahedra,  a cornercorner with one Gd(3)O6 octahedra,  an edgeedge with one Er(1)O6 octahedra,  an edgeedge with one Er(2)O6 octahedra,  an edgeedge with one Er(3)O6 octahedra,  an edgeedge with one Er(5)O6 octahedra,  an edgeedge with one Gd(2)O6 octahedra, and  an edgeedge with one Gd(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-59°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded to one Er(1), one Gd(1), one Gd(2), and one Gd(4) atom to form OGd3Er trigonal pyramids that share  a cornercorner with one O(5)Gd3Er tetrahedra,  a cornercorner with one O(1)Gd3Er trigonal pyramid,  a cornercorner with one O(7)Gd3Er trigonal pyramid,  a cornercorner with one O(12)GdEr3 trigonal pyramid,  a cornercorner with one O(2)GdEr3 trigonal pyramid,  a cornercorner with one O(9)GdEr3 trigonal pyramid, corners with two equivalent O(4)Gd2Er2 trigonal pyramids, corners with two equivalent O(6)Gd2Er2 trigonal pyramids, corners with two equivalent O(8)Gd2Er2 trigonal pyramids,  an edgeedge with one O(10)Gd2Er2 tetrahedra,  an edgeedge with one O(5)Gd3Er tetrahedra,  an edgeedge with one O(3)Gd2Er2 trigonal pyramid, and  an edgeedge with one O(7)Gd3Er trigonal pyramid. In the second O site, O(2) is bonded to one Er(2), one Er(4), one Er(5), and one Gd(1) atom to form OGdEr3 trigonal pyramids that share  a cornercorner with one O(5)Gd3Er tetrahedra,  a cornercorner with one O(1)Gd3Er trigonal pyramid,  a cornercorner with one O(7)Gd3Er trigonal pyramid,  a cornercorner with one O(12)GdEr3 trigonal pyramid,  a cornercorner with one O(2)GdEr3 trigonal pyramid,  a cornercorner with one O(9)GdEr3 trigonal pyramid, corners with two equivalent O(4)Gd2Er2 trigonal pyramids, corners with two equivalent O(6)Gd2Er2 trigonal pyramids, corners with two equivalent O(8)Gd2Er2 trigonal pyramids, edges with two equivalent O(10)Gd2Er2 tetrahedra,  an edgeedge with one O(11)Gd2Er2 trigonal pyramid, and  an edgeedge with one O(12)GdEr3 trigonal pyramid. In the third O site, O(3) is bonded to one Er(1), one Er(3), one Gd(2), and one Gd(5) atom to form OGd2Er2 trigonal pyramids that share  a cornercorner with one O(10)Gd2Er2 tetrahedra, corners with two equivalent O(5)Gd3Er tetrahedra,  a cornercorner with one O(11)Gd2Er2 trigonal pyramid,  a cornercorner with one O(3)Gd2Er2 trigonal pyramid,  a cornercorner with one O(4)Gd2Er2 trigonal pyramid,  a cornercorner with one O(6)Gd2Er2 trigonal pyramid,  a cornercorner with one O(8)Gd2Er2 trigonal pyramid, corners with two equivalent O(7)Gd3Er trigonal pyramids, corners with two equivalent O(12)GdEr3 trigonal pyramids,  an edgeedge with one O(6)Gd2Er2 trigonal pyramid,  an edgeedge with one O(1)Gd3Er trigonal pyramid, and edges with two equivalent O(9)GdEr3 trigonal pyramids. In the fourth O site, O(4) is bonded to one Er(2), one Er(5), one Gd(4), and one Gd(5) atom to form distorted OGd2Er2 trigonal pyramids that share  a cornercorner with one O(10)Gd2Er2 tetrahedra,  a cornercorner with one O(11)Gd2Er2 trigonal pyramid,  a cornercorner with one O(3)Gd2Er2 trigonal pyramid,  a cornercorner with one O(4)Gd2Er2 trigonal pyramid,  a cornercorner with one O(6)Gd2Er2 trigonal pyramid,  a cornercorner with one O(8)Gd2Er2 trigonal pyramid, corners with two equivalent O(1)Gd3Er trigonal pyramids, corners with two equivalent O(2)GdEr3 trigonal pyramids, corners with two equivalent O(9)GdEr3 trigonal pyramids,  an edgeedge with one O(11)Gd2Er2 trigonal pyramid,  an edgeedge with one O(12)GdEr3 trigonal pyramid, and edges with two equivalent O(7)Gd3Er trigonal pyramids. In the fifth O site, O(5) is bonded to one Er(1), one Gd(1), one Gd(2), and one Gd(3) atom to form OGd3Er tetrahedra that share  a cornercorner with one O(5)Gd3Er tetrahedra, corners with two equivalent O(10)Gd2Er2 tetrahedra,  a cornercorner with one O(1)Gd3Er trigonal pyramid,  a cornercorner with one O(7)Gd3Er trigonal pyramid,  a cornercorner with one O(12)GdEr3 trigonal pyramid,  a cornercorner with one O(2)GdEr3 trigonal pyramid,  a cornercorner with one O(9)GdEr3 trigonal pyramid, corners with two equivalent O(11)Gd2Er2 trigonal pyramids, corners with two equivalent O(3)Gd2Er2 trigonal pyramids,  an edgeedge with one O(6)Gd2Er2 trigonal pyramid,  an edgeedge with one O(1)Gd3Er trigonal pyramid, and edges with two equivalent O(8)Gd2Er2 trigonal pyramids. In the sixth O site, O(6) is bonded to one Er(1), one Er(4), one Gd(2), and one Gd(5) atom to form OGd2Er2 trigonal pyramids that share  a cornercorner with one O(10)Gd2Er2 tetrahedra,  a cornercorner with one O(11)Gd2Er2 trigonal pyramid,  a cornercorner with one O(3)Gd2Er2 trigonal pyramid,  a cornercorner with one O(4)Gd2Er2 trigonal pyramid,  a cornercorner with one O(6)Gd2Er2 trigonal pyramid,  a cornercorner with one O(8)Gd2Er2 trigonal pyramid, corners with two equivalent O(1)Gd3Er trigonal pyramids, corners with two equivalent O(2)GdEr3 trigonal pyramids, corners with two equivalent O(9)GdEr3 trigonal pyramids,  an edgeedge with one O(10)Gd2Er2 tetrahedra,  an edgeedge with one O(5)Gd3Er tetrahedra,  an edgeedge with one O(3)Gd2Er2 trigonal pyramid, and  an edgeedge with one O(7)Gd3Er trigonal pyramid. In the seventh O site, O(7) is bonded to one Er(2), one Gd(2), one Gd(4), and one Gd(5) atom to form OGd3Er trigonal pyramids that share  a cornercorner with one O(5)Gd3Er tetrahedra, corners with two equivalent O(10)Gd2Er2 tetrahedra,  a cornercorner with one O(1)Gd3Er trigonal pyramid,  a cornercorner with one O(7)Gd3Er trigonal pyramid,  a cornercorner with one O(12)GdEr3 trigonal pyramid,  a cornercorner with one O(2)GdEr3 trigonal pyramid,  a cornercorner with one O(9)GdEr3 trigonal pyramid, corners with two equivalent O(11)Gd2Er2 trigonal pyramids, corners with two equivalent O(3)Gd2Er2 trigonal pyramids,  an edgeedge with one O(6)Gd2Er2 trigonal pyramid,  an edgeedge with one O(1)Gd3Er trigonal pyramid, and edges with two equivalent O(4)Gd2Er2 trigonal pyramids. In the eighth O site, O(8) is bonded to one Er(1), one Er(5), one Gd(1), and one Gd(3) atom to form OGd2Er2 trigonal pyramids that share  a cornercorner with one O(10)Gd2Er2 tetrahedra,  a cornercorner with one O(11)Gd2Er2 trigonal pyramid,  a cornercorner with one O(3)Gd2Er2 trigonal pyramid,  a cornercorner with one O(4)Gd2Er2 trigonal pyramid,  a cornercorner with one O(6)Gd2Er2 trigonal pyramid,  a cornercorner with one O(8)Gd2Er2 trigonal pyramid, corners with two equivalent O(1)Gd3Er trigonal pyramids, corners with two equivalent O(2)GdEr3 trigonal pyramids, corners with two equivalent O(9)GdEr3 trigonal pyramids, edges with two equivalent O(5)Gd3Er tetrahedra,  an edgeedge with one O(11)Gd2Er2 trigonal pyramid, and  an edgeedge with one O(12)GdEr3 trigonal pyramid. In the ninth O site, O(9) is bonded to one Er(1), one Er(3), one Er(5), and one Gd(5) atom to form distorted OGdEr3 trigonal pyramids that share  a cornercorner with one O(5)Gd3Er tetrahedra,  a cornercorner with one O(1)Gd3Er trigonal pyramid,  a cornercorner with one O(7)Gd3Er trigonal pyramid,  a cornercorner with one O(12)GdEr3 trigonal pyramid,  a cornercorner with one O(2)GdEr3 trigonal pyramid,  a cornercorner with one O(9)GdEr3 trigonal pyramid, corners with two equivalent O(4)Gd2Er2 trigonal pyramids, corners with two equivalent O(6)Gd2Er2 trigonal pyramids, corners with two equivalent O(8)Gd2Er2 trigonal pyramids,  an edgeedge with one O(11)Gd2Er2 trigonal pyramid,  an edgeedge with one O(12)GdEr3 trigonal pyramid, and edges with two equivalent O(3)Gd2Er2 trigonal pyramids. In the tenth O site, O(10) is bonded to one Er(2), one Er(4), one Gd(1), and one Gd(2) atom to form OGd2Er2 tetrahedra that share  a cornercorner with one O(10)Gd2Er2 tetrahedra, corners with two equivalent O(5)Gd3Er tetrahedra,  a cornercorner with one O(11)Gd2Er2 trigonal pyramid,  a cornercorner with one O(3)Gd2Er2 trigonal pyramid,  a cornercorner with one O(4)Gd2Er2 trigonal pyramid,  a cornercorner with one O(6)Gd2Er2 trigonal pyramid,  a cornercorner with one O(8)Gd2Er2 trigonal pyramid, corners with two equivalent O(7)Gd3Er trigonal pyramids, corners with two equivalent O(12)GdEr3 trigonal pyramids,  an edgeedge with one O(6)Gd2Er2 trigonal pyramid,  an edgeedge with one O(1)Gd3Er trigonal pyramid, and edges with two equivalent O(2)GdEr3 trigonal pyramids. In the eleventh O site, O(11) is bonded to one Er(2), one Er(5), one Gd(3), and one Gd(5) atom to form OGd2Er2 trigonal pyramids that share  a cornercorner with one O(10)Gd2Er2 tetrahedra, corners with two equivalent O(5)Gd3Er tetrahedra,  a cornercorner with one O(11)Gd2Er2 trigonal pyramid,  a cornercorner with one O(3)Gd2Er2 trigonal pyramid,  a cornercorner with one O(4)Gd2Er2 trigonal pyramid,  a cornercorner with one O(6)Gd2Er2 trigonal pyramid,  a cornercorner with one O(8)Gd2Er2 trigonal pyramid, corners with two equivalent O(7)Gd3Er trigonal pyramids, corners with two equivalent O(12)GdEr3 trigonal pyramids,  an edgeedge with one O(4)Gd2Er2 trigonal pyramid,  an edgeedge with one O(8)Gd2Er2 trigonal pyramid,  an edgeedge with one O(2)GdEr3 trigonal pyramid, and  an edgeedge with one O(9)GdEr3 trigonal pyramid. In the twelfth O site, O(12) is bonded to one Er(2), one Er(3), one Er(5), and one Gd(1) atom to form OGdEr3 trigonal pyramids that share  a cornercorner with one O(5)Gd3Er tetrahedra, corners with two equivalent O(10)Gd2Er2 tetrahedra,  a cornercorner with one O(1)Gd3Er trigonal pyramid,  a cornercorner with one O(7)Gd3Er trigonal pyramid,  a cornercorner with one O(12)GdEr3 trigonal pyramid,  a cornercorner with one O(2)GdEr3 trigonal pyramid,  a cornercorner with one O(9)GdEr3 trigonal pyramid, corners with two equivalent O(11)Gd2Er2 trigonal pyramids, corners with two equivalent O(3)Gd2Er2 trigonal pyramids,  an edgeedge with one O(4)Gd2Er2 trigonal pyramid,  an edgeedge with one O(8)Gd2Er2 trigonal pyramid,  an edgeedge with one O(2)GdEr3 trigonal pyramid, and  an edgeedge with one O(9)GdEr3 trigonal pyramid. is represented by the CIF file [CIF]
data_GdErO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.204
_cell_length_b   9.205
_cell_length_c   10.624
_cell_angle_alpha   54.724
_cell_angle_beta   54.736
_cell_angle_gamma   70.513
_symmetry_Int_Tables_number   1
_cell_volume   599.968
_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
  Gd  Gd0  1  0.501  0.501  0.749  1.0
  Gd  Gd1  1  0.530  0.031  0.970  1.0
  Gd  Gd2  1  0.969  0.470  0.030  1.0
  Gd  Gd3  1  0.280  0.720  0.500  1.0
  Gd  Gd4  1  0.781  0.218  0.500  1.0
  Gd  Gd5  1  0.996  0.998  0.250  1.0
  Gd  Gd6  1  0.499  0.498  0.251  1.0
  Gd  Gd7  1  0.002  0.004  0.750  1.0
  Er  Er8  1  0.248  0.249  0.782  1.0
  Er  Er9  1  0.251  0.252  0.282  1.0
  Er  Er10  1  0.751  0.752  0.218  1.0
  Er  Er11  1  0.219  0.781  1.000  1.0
  Er  Er12  1  0.717  0.283  0.000  1.0
  Er  Er13  1  0.031  0.531  0.469  1.0
  Er  Er14  1  0.468  0.969  0.532  1.0
  Er  Er15  1  0.748  0.749  0.718  1.0
  O  O16  1  0.730  0.476  0.291  1.0
  O  O17  1  0.524  0.270  0.709  1.0
  O  O18  1  0.775  0.486  0.720  1.0
  O  O19  1  0.268  0.986  0.020  1.0
  O  O20  1  0.991  0.275  0.519  1.0
  O  O21  1  0.491  0.769  0.221  1.0
  O  O22  1  0.770  0.030  0.996  1.0
  O  O23  1  0.970  0.230  0.004  1.0
  O  O24  1  0.048  0.238  0.238  1.0
  O  O25  1  0.252  0.453  0.526  1.0
  O  O26  1  0.547  0.748  0.474  1.0
  O  O27  1  0.762  0.953  0.762  1.0
  O  O28  1  0.958  0.753  0.263  1.0
  O  O29  1  0.458  0.262  0.024  1.0
  O  O30  1  0.247  0.042  0.737  1.0
  O  O31  1  0.738  0.542  0.976  1.0
  O  O32  1  0.232  0.976  0.506  1.0
  O  O33  1  0.024  0.768  0.494  1.0
  O  O34  1  0.014  0.732  0.980  1.0
  O  O35  1  0.514  0.225  0.280  1.0
  O  O36  1  0.725  0.009  0.481  1.0
  O  O37  1  0.231  0.509  0.779  1.0
  O  O38  1  0.268  0.531  0.207  1.0
  O  O39  1  0.469  0.732  0.793  1.0
[/CIF]
.
The material described by ErGdO3 is Spinel-like structured and crystallizes in the monoclinic C2 space group. There are five inequivalent Er sites. In the first Er site, Er(1) is bonded to one O(1), one O(3), one O(5), one O(6), one O(8), and one O(9) atom to form distorted ErO6 octahedra that share  a cornercorner with one Er(4)O6 octahedra,  a cornercorner with one Gd(1)O6 octahedra,  a cornercorner with one Gd(4)O6 octahedra,  a cornercorner with one Gd(5)O6 octahedra, corners with two equivalent Er(5)O6 octahedra,  an edgeedge with one Er(3)O6 octahedra,  an edgeedge with one Gd(1)O6 octahedra,  an edgeedge with one Gd(3)O6 octahedra,  an edgeedge with one Gd(5)O6 octahedra, and edges with two equivalent Gd(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-59°. In the second Er site, Er(2) is bonded to one O(10), one O(11), one O(12), one O(2), one O(4), and one O(7) atom to form distorted ErO6 octahedra that share  a cornercorner with one Er(3)O6 octahedra,  a cornercorner with one Gd(1)O6 octahedra,  a cornercorner with one Gd(3)O6 octahedra,  a cornercorner with one Gd(5)O6 octahedra, corners with two equivalent Gd(2)O6 octahedra,  an edgeedge with one Er(4)O6 octahedra,  an edgeedge with one Gd(1)O6 octahedra,  an edgeedge with one Gd(4)O6 octahedra,  an edgeedge with one Gd(5)O6 octahedra, and edges with two equivalent Er(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-56°. In the third Er site, Er(3) is bonded to two equivalent O(12), two equivalent O(3), and two equivalent O(9) atoms to form distorted ErO6 octahedra that share corners with two equivalent Er(2)O6 octahedra, corners with two equivalent Gd(1)O6 octahedra, corners with two equivalent Gd(2)O6 octahedra, edges with two equivalent Er(1)O6 octahedra, edges with two equivalent Er(5)O6 octahedra, and edges with two equivalent Gd(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-57°. In the fourth Er site, Er(4) is bonded to two equivalent O(10), two equivalent O(2), and two equivalent O(6) atoms to form distorted ErO6 octahedra that share corners with two equivalent Er(1)O6 octahedra, corners with two equivalent Er(5)O6 octahedra, corners with two equivalent Gd(5)O6 octahedra, edges with two equivalent Er(2)O6 octahedra, edges with two equivalent Gd(1)O6 octahedra, and edges with two equivalent Gd(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-58°. In the fifth Er site, Er(5) is bonded to one O(11), one O(12), one O(2), one O(4), one O(8), and one O(9) atom to form distorted ErO6 octahedra that share  a cornercorner with one Er(4)O6 octahedra,  a cornercorner with one Gd(1)O6 octahedra,  a cornercorner with one Gd(4)O6 octahedra,  a cornercorner with one Gd(5)O6 octahedra, corners with two equivalent Er(1)O6 octahedra,  an edgeedge with one Er(3)O6 octahedra,  an edgeedge with one Gd(1)O6 octahedra,  an edgeedge with one Gd(3)O6 octahedra,  an edgeedge with one Gd(5)O6 octahedra, and edges with two equivalent Er(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-57°. There are five inequivalent Gd sites. In the first Gd site, Gd(1) is bonded to one O(1), one O(10), one O(12), one O(2), one O(5), and one O(8) atom to form GdO6 octahedra that share  a cornercorner with one Er(1)O6 octahedra,  a cornercorner with one Er(2)O6 octahedra,  a cornercorner with one Er(3)O6 octahedra,  a cornercorner with one Er(5)O6 octahedra,  a cornercorner with one Gd(2)O6 octahedra,  a cornercorner with one Gd(4)O6 octahedra,  an edgeedge with one Er(1)O6 octahedra,  an edgeedge with one Er(2)O6 octahedra,  an edgeedge with one Er(4)O6 octahedra,  an edgeedge with one Er(5)O6 octahedra,  an edgeedge with one Gd(2)O6 octahedra, and  an edgeedge with one Gd(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 56-59°. In the second Gd site, Gd(2) is bonded to one O(1), one O(10), one O(3), one O(5), one O(6), and one O(7) atom to form distorted GdO6 octahedra that share  a cornercorner with one Er(3)O6 octahedra,  a cornercorner with one Gd(1)O6 octahedra,  a cornercorner with one Gd(3)O6 octahedra,  a cornercorner with one Gd(5)O6 octahedra, corners with two equivalent Er(2)O6 octahedra,  an edgeedge with one Er(4)O6 octahedra,  an edgeedge with one Gd(1)O6 octahedra,  an edgeedge with one Gd(4)O6 octahedra,  an edgeedge with one Gd(5)O6 octahedra, and edges with two equivalent Er(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-58°. In the third Gd site, Gd(3) is bonded to two equivalent O(11), two equivalent O(5), and two equivalent O(8) atoms to form distorted GdO6 octahedra that share corners with two equivalent Er(2)O6 octahedra, corners with two equivalent Gd(2)O6 octahedra, corners with two equivalent Gd(5)O6 octahedra, edges with two equivalent Er(1)O6 octahedra, edges with two equivalent Er(5)O6 octahedra, and edges with two equivalent Gd(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-58°. In the fourth Gd site, Gd(4) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(7) atoms to form distorted GdO6 octahedra that share corners with two equivalent Er(1)O6 octahedra, corners with two equivalent Er(5)O6 octahedra, corners with two equivalent Gd(1)O6 octahedra, edges with two equivalent Er(2)O6 octahedra, edges with two equivalent Gd(2)O6 octahedra, and edges with two equivalent Gd(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-59°. In the fifth Gd site, Gd(5) is bonded to one O(11), one O(3), one O(4), one O(6), one O(7), and one O(9) atom to form GdO6 octahedra that share  a cornercorner with one Er(1)O6 octahedra,  a cornercorner with one Er(2)O6 octahedra,  a cornercorner with one Er(4)O6 octahedra,  a cornercorner with one Er(5)O6 octahedra,  a cornercorner with one Gd(2)O6 octahedra,  a cornercorner with one Gd(3)O6 octahedra,  an edgeedge with one Er(1)O6 octahedra,  an edgeedge with one Er(2)O6 octahedra,  an edgeedge with one Er(3)O6 octahedra,  an edgeedge with one Er(5)O6 octahedra,  an edgeedge with one Gd(2)O6 octahedra, and  an edgeedge with one Gd(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-59°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded to one Er(1), one Gd(1), one Gd(2), and one Gd(4) atom to form OGd3Er trigonal pyramids that share  a cornercorner with one O(5)Gd3Er tetrahedra,  a cornercorner with one O(1)Gd3Er trigonal pyramid,  a cornercorner with one O(7)Gd3Er trigonal pyramid,  a cornercorner with one O(12)GdEr3 trigonal pyramid,  a cornercorner with one O(2)GdEr3 trigonal pyramid,  a cornercorner with one O(9)GdEr3 trigonal pyramid, corners with two equivalent O(4)Gd2Er2 trigonal pyramids, corners with two equivalent O(6)Gd2Er2 trigonal pyramids, corners with two equivalent O(8)Gd2Er2 trigonal pyramids,  an edgeedge with one O(10)Gd2Er2 tetrahedra,  an edgeedge with one O(5)Gd3Er tetrahedra,  an edgeedge with one O(3)Gd2Er2 trigonal pyramid, and  an edgeedge with one O(7)Gd3Er trigonal pyramid. In the second O site, O(2) is bonded to one Er(2), one Er(4), one Er(5), and one Gd(1) atom to form OGdEr3 trigonal pyramids that share  a cornercorner with one O(5)Gd3Er tetrahedra,  a cornercorner with one O(1)Gd3Er trigonal pyramid,  a cornercorner with one O(7)Gd3Er trigonal pyramid,  a cornercorner with one O(12)GdEr3 trigonal pyramid,  a cornercorner with one O(2)GdEr3 trigonal pyramid,  a cornercorner with one O(9)GdEr3 trigonal pyramid, corners with two equivalent O(4)Gd2Er2 trigonal pyramids, corners with two equivalent O(6)Gd2Er2 trigonal pyramids, corners with two equivalent O(8)Gd2Er2 trigonal pyramids, edges with two equivalent O(10)Gd2Er2 tetrahedra,  an edgeedge with one O(11)Gd2Er2 trigonal pyramid, and  an edgeedge with one O(12)GdEr3 trigonal pyramid. In the third O site, O(3) is bonded to one Er(1), one Er(3), one Gd(2), and one Gd(5) atom to form OGd2Er2 trigonal pyramids that share  a cornercorner with one O(10)Gd2Er2 tetrahedra, corners with two equivalent O(5)Gd3Er tetrahedra,  a cornercorner with one O(11)Gd2Er2 trigonal pyramid,  a cornercorner with one O(3)Gd2Er2 trigonal pyramid,  a cornercorner with one O(4)Gd2Er2 trigonal pyramid,  a cornercorner with one O(6)Gd2Er2 trigonal pyramid,  a cornercorner with one O(8)Gd2Er2 trigonal pyramid, corners with two equivalent O(7)Gd3Er trigonal pyramids, corners with two equivalent O(12)GdEr3 trigonal pyramids,  an edgeedge with one O(6)Gd2Er2 trigonal pyramid,  an edgeedge with one O(1)Gd3Er trigonal pyramid, and edges with two equivalent O(9)GdEr3 trigonal pyramids. In the fourth O site, O(4) is bonded to one Er(2), one Er(5), one Gd(4), and one Gd(5) atom to form distorted OGd2Er2 trigonal pyramids that share  a cornercorner with one O(10)Gd2Er2 tetrahedra,  a cornercorner with one O(11)Gd2Er2 trigonal pyramid,  a cornercorner with one O(3)Gd2Er2 trigonal pyramid,  a cornercorner with one O(4)Gd2Er2 trigonal pyramid,  a cornercorner with one O(6)Gd2Er2 trigonal pyramid,  a cornercorner with one O(8)Gd2Er2 trigonal pyramid, corners with two equivalent O(1)Gd3Er trigonal pyramids, corners with two equivalent O(2)GdEr3 trigonal pyramids, corners with two equivalent O(9)GdEr3 trigonal pyramids,  an edgeedge with one O(11)Gd2Er2 trigonal pyramid,  an edgeedge with one O(12)GdEr3 trigonal pyramid, and edges with two equivalent O(7)Gd3Er trigonal pyramids. In the fifth O site, O(5) is bonded to one Er(1), one Gd(1), one Gd(2), and one Gd(3) atom to form OGd3Er tetrahedra that share  a cornercorner with one O(5)Gd3Er tetrahedra, corners with two equivalent O(10)Gd2Er2 tetrahedra,  a cornercorner with one O(1)Gd3Er trigonal pyramid,  a cornercorner with one O(7)Gd3Er trigonal pyramid,  a cornercorner with one O(12)GdEr3 trigonal pyramid,  a cornercorner with one O(2)GdEr3 trigonal pyramid,  a cornercorner with one O(9)GdEr3 trigonal pyramid, corners with two equivalent O(11)Gd2Er2 trigonal pyramids, corners with two equivalent O(3)Gd2Er2 trigonal pyramids,  an edgeedge with one O(6)Gd2Er2 trigonal pyramid,  an edgeedge with one O(1)Gd3Er trigonal pyramid, and edges with two equivalent O(8)Gd2Er2 trigonal pyramids. In the sixth O site, O(6) is bonded to one Er(1), one Er(4), one Gd(2), and one Gd(5) atom to form OGd2Er2 trigonal pyramids that share  a cornercorner with one O(10)Gd2Er2 tetrahedra,  a cornercorner with one O(11)Gd2Er2 trigonal pyramid,  a cornercorner with one O(3)Gd2Er2 trigonal pyramid,  a cornercorner with one O(4)Gd2Er2 trigonal pyramid,  a cornercorner with one O(6)Gd2Er2 trigonal pyramid,  a cornercorner with one O(8)Gd2Er2 trigonal pyramid, corners with two equivalent O(1)Gd3Er trigonal pyramids, corners with two equivalent O(2)GdEr3 trigonal pyramids, corners with two equivalent O(9)GdEr3 trigonal pyramids,  an edgeedge with one O(10)Gd2Er2 tetrahedra,  an edgeedge with one O(5)Gd3Er tetrahedra,  an edgeedge with one O(3)Gd2Er2 trigonal pyramid, and  an edgeedge with one O(7)Gd3Er trigonal pyramid. In the seventh O site, O(7) is bonded to one Er(2), one Gd(2), one Gd(4), and one Gd(5) atom to form OGd3Er trigonal pyramids that share  a cornercorner with one O(5)Gd3Er tetrahedra, corners with two equivalent O(10)Gd2Er2 tetrahedra,  a cornercorner with one O(1)Gd3Er trigonal pyramid,  a cornercorner with one O(7)Gd3Er trigonal pyramid,  a cornercorner with one O(12)GdEr3 trigonal pyramid,  a cornercorner with one O(2)GdEr3 trigonal pyramid,  a cornercorner with one O(9)GdEr3 trigonal pyramid, corners with two equivalent O(11)Gd2Er2 trigonal pyramids, corners with two equivalent O(3)Gd2Er2 trigonal pyramids,  an edgeedge with one O(6)Gd2Er2 trigonal pyramid,  an edgeedge with one O(1)Gd3Er trigonal pyramid, and edges with two equivalent O(4)Gd2Er2 trigonal pyramids. In the eighth O site, O(8) is bonded to one Er(1), one Er(5), one Gd(1), and one Gd(3) atom to form OGd2Er2 trigonal pyramids that share  a cornercorner with one O(10)Gd2Er2 tetrahedra,  a cornercorner with one O(11)Gd2Er2 trigonal pyramid,  a cornercorner with one O(3)Gd2Er2 trigonal pyramid,  a cornercorner with one O(4)Gd2Er2 trigonal pyramid,  a cornercorner with one O(6)Gd2Er2 trigonal pyramid,  a cornercorner with one O(8)Gd2Er2 trigonal pyramid, corners with two equivalent O(1)Gd3Er trigonal pyramids, corners with two equivalent O(2)GdEr3 trigonal pyramids, corners with two equivalent O(9)GdEr3 trigonal pyramids, edges with two equivalent O(5)Gd3Er tetrahedra,  an edgeedge with one O(11)Gd2Er2 trigonal pyramid, and  an edgeedge with one O(12)GdEr3 trigonal pyramid. In the ninth O site, O(9) is bonded to one Er(1), one Er(3), one Er(5), and one Gd(5) atom to form distorted OGdEr3 trigonal pyramids that share  a cornercorner with one O(5)Gd3Er tetrahedra,  a cornercorner with one O(1)Gd3Er trigonal pyramid,  a cornercorner with one O(7)Gd3Er trigonal pyramid,  a cornercorner with one O(12)GdEr3 trigonal pyramid,  a cornercorner with one O(2)GdEr3 trigonal pyramid,  a cornercorner with one O(9)GdEr3 trigonal pyramid, corners with two equivalent O(4)Gd2Er2 trigonal pyramids, corners with two equivalent O(6)Gd2Er2 trigonal pyramids, corners with two equivalent O(8)Gd2Er2 trigonal pyramids,  an edgeedge with one O(11)Gd2Er2 trigonal pyramid,  an edgeedge with one O(12)GdEr3 trigonal pyramid, and edges with two equivalent O(3)Gd2Er2 trigonal pyramids. In the tenth O site, O(10) is bonded to one Er(2), one Er(4), one Gd(1), and one Gd(2) atom to form OGd2Er2 tetrahedra that share  a cornercorner with one O(10)Gd2Er2 tetrahedra, corners with two equivalent O(5)Gd3Er tetrahedra,  a cornercorner with one O(11)Gd2Er2 trigonal pyramid,  a cornercorner with one O(3)Gd2Er2 trigonal pyramid,  a cornercorner with one O(4)Gd2Er2 trigonal pyramid,  a cornercorner with one O(6)Gd2Er2 trigonal pyramid,  a cornercorner with one O(8)Gd2Er2 trigonal pyramid, corners with two equivalent O(7)Gd3Er trigonal pyramids, corners with two equivalent O(12)GdEr3 trigonal pyramids,  an edgeedge with one O(6)Gd2Er2 trigonal pyramid,  an edgeedge with one O(1)Gd3Er trigonal pyramid, and edges with two equivalent O(2)GdEr3 trigonal pyramids. In the eleventh O site, O(11) is bonded to one Er(2), one Er(5), one Gd(3), and one Gd(5) atom to form OGd2Er2 trigonal pyramids that share  a cornercorner with one O(10)Gd2Er2 tetrahedra, corners with two equivalent O(5)Gd3Er tetrahedra,  a cornercorner with one O(11)Gd2Er2 trigonal pyramid,  a cornercorner with one O(3)Gd2Er2 trigonal pyramid,  a cornercorner with one O(4)Gd2Er2 trigonal pyramid,  a cornercorner with one O(6)Gd2Er2 trigonal pyramid,  a cornercorner with one O(8)Gd2Er2 trigonal pyramid, corners with two equivalent O(7)Gd3Er trigonal pyramids, corners with two equivalent O(12)GdEr3 trigonal pyramids,  an edgeedge with one O(4)Gd2Er2 trigonal pyramid,  an edgeedge with one O(8)Gd2Er2 trigonal pyramid,  an edgeedge with one O(2)GdEr3 trigonal pyramid, and  an edgeedge with one O(9)GdEr3 trigonal pyramid. In the twelfth O site, O(12) is bonded to one Er(2), one Er(3), one Er(5), and one Gd(1) atom to form OGdEr3 trigonal pyramids that share  a cornercorner with one O(5)Gd3Er tetrahedra, corners with two equivalent O(10)Gd2Er2 tetrahedra,  a cornercorner with one O(1)Gd3Er trigonal pyramid,  a cornercorner with one O(7)Gd3Er trigonal pyramid,  a cornercorner with one O(12)GdEr3 trigonal pyramid,  a cornercorner with one O(2)GdEr3 trigonal pyramid,  a cornercorner with one O(9)GdEr3 trigonal pyramid, corners with two equivalent O(11)Gd2Er2 trigonal pyramids, corners with two equivalent O(3)Gd2Er2 trigonal pyramids,  an edgeedge with one O(4)Gd2Er2 trigonal pyramid,  an edgeedge with one O(8)Gd2Er2 trigonal pyramid,  an edgeedge with one O(2)GdEr3 trigonal pyramid, and  an edgeedge with one O(9)GdEr3 trigonal pyramid. is represented by the CIF file [CIF]
data_GdErO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.204
_cell_length_b   9.205
_cell_length_c   10.624
_cell_angle_alpha   54.724
_cell_angle_beta   54.736
_cell_angle_gamma   70.513
_symmetry_Int_Tables_number   1
_cell_volume   599.968
_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
  Gd  Gd0  1  0.501  0.501  0.749  1.0
  Gd  Gd1  1  0.530  0.031  0.970  1.0
  Gd  Gd2  1  0.969  0.470  0.030  1.0
  Gd  Gd3  1  0.280  0.720  0.500  1.0
  Gd  Gd4  1  0.781  0.218  0.500  1.0
  Gd  Gd5  1  0.996  0.998  0.250  1.0
  Gd  Gd6  1  0.499  0.498  0.251  1.0
  Gd  Gd7  1  0.002  0.004  0.750  1.0
  Er  Er8  1  0.248  0.249  0.782  1.0
  Er  Er9  1  0.251  0.252  0.282  1.0
  Er  Er10  1  0.751  0.752  0.218  1.0
  Er  Er11  1  0.219  0.781  1.000  1.0
  Er  Er12  1  0.717  0.283  0.000  1.0
  Er  Er13  1  0.031  0.531  0.469  1.0
  Er  Er14  1  0.468  0.969  0.532  1.0
  Er  Er15  1  0.748  0.749  0.718  1.0
  O  O16  1  0.730  0.476  0.291  1.0
  O  O17  1  0.524  0.270  0.709  1.0
  O  O18  1  0.775  0.486  0.720  1.0
  O  O19  1  0.268  0.986  0.020  1.0
  O  O20  1  0.991  0.275  0.519  1.0
  O  O21  1  0.491  0.769  0.221  1.0
  O  O22  1  0.770  0.030  0.996  1.0
  O  O23  1  0.970  0.230  0.004  1.0
  O  O24  1  0.048  0.238  0.238  1.0
  O  O25  1  0.252  0.453  0.526  1.0
  O  O26  1  0.547  0.748  0.474  1.0
  O  O27  1  0.762  0.953  0.762  1.0
  O  O28  1  0.958  0.753  0.263  1.0
  O  O29  1  0.458  0.262  0.024  1.0
  O  O30  1  0.247  0.042  0.737  1.0
  O  O31  1  0.738  0.542  0.976  1.0
  O  O32  1  0.232  0.976  0.506  1.0
  O  O33  1  0.024  0.768  0.494  1.0
  O  O34  1  0.014  0.732  0.980  1.0
  O  O35  1  0.514  0.225  0.280  1.0
  O  O36  1  0.725  0.009  0.481  1.0
  O  O37  1  0.231  0.509  0.779  1.0
  O  O38  1  0.268  0.531  0.207  1.0
  O  O39  1  0.469  0.732  0.793  1.0
[/CIF]
.