ZnFeGaO4 is Spinel-derived structured and crystallizes in the orthorhombic Imma space group. Fe(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form FeO6 octahedra that share corners with six equivalent Zn(1)O4 tetrahedra, edges with two equivalent Fe(1)O6 octahedra, and edges with four equivalent Ga(1)O6 octahedra. Zn(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form ZnO4 tetrahedra that share corners with six equivalent Fe(1)O6 octahedra and corners with six equivalent Ga(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 58-59°. Ga(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form GaO6 octahedra that share corners with six equivalent Zn(1)O4 tetrahedra, edges with two equivalent Ga(1)O6 octahedra, and edges with four equivalent Fe(1)O6 octahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Fe(1), one Zn(1), and one Ga(1) atom to form distorted OZnGaFe2 trigonal pyramids that share corners with six equivalent O(2)ZnGa2Fe trigonal pyramids, corners with six equivalent O(1)ZnGaFe2 trigonal pyramids,  an edgeedge with one O(1)ZnGaFe2 trigonal pyramid, and edges with two equivalent O(2)ZnGa2Fe trigonal pyramids. In the second O site, O(2) is bonded to one Fe(1), one Zn(1), and two equivalent Ga(1) atoms to form distorted OZnGa2Fe trigonal pyramids that share corners with six equivalent O(2)ZnGa2Fe trigonal pyramids, corners with six equivalent O(1)ZnGaFe2 trigonal pyramids,  an edgeedge with one O(2)ZnGa2Fe trigonal pyramid, and edges with two equivalent O(1)ZnGaFe2 trigonal pyramids.
ZnFeGaO4 is Spinel-derived structured and crystallizes in the orthorhombic Imma space group. Fe(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form FeO6 octahedra that share corners with six equivalent Zn(1)O4 tetrahedra, edges with two equivalent Fe(1)O6 octahedra, and edges with four equivalent Ga(1)O6 octahedra. Both Fe(1)-O(2) bond lengths are 2.05 Å. All Fe(1)-O(1) bond lengths are 2.04 Å. Zn(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form ZnO4 tetrahedra that share corners with six equivalent Fe(1)O6 octahedra and corners with six equivalent Ga(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 58-59°. Both Zn(1)-O(1) bond lengths are 2.00 Å. Both Zn(1)-O(2) bond lengths are 2.01 Å. Ga(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form GaO6 octahedra that share corners with six equivalent Zn(1)O4 tetrahedra, edges with two equivalent Ga(1)O6 octahedra, and edges with four equivalent Fe(1)O6 octahedra. Both Ga(1)-O(1) bond lengths are 2.03 Å. All Ga(1)-O(2) bond lengths are 2.02 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Fe(1), one Zn(1), and one Ga(1) atom to form distorted OZnGaFe2 trigonal pyramids that share corners with six equivalent O(2)ZnGa2Fe trigonal pyramids, corners with six equivalent O(1)ZnGaFe2 trigonal pyramids,  an edgeedge with one O(1)ZnGaFe2 trigonal pyramid, and edges with two equivalent O(2)ZnGa2Fe trigonal pyramids. In the second O site, O(2) is bonded to one Fe(1), one Zn(1), and two equivalent Ga(1) atoms to form distorted OZnGa2Fe trigonal pyramids that share corners with six equivalent O(2)ZnGa2Fe trigonal pyramids, corners with six equivalent O(1)ZnGaFe2 trigonal pyramids,  an edgeedge with one O(2)ZnGa2Fe trigonal pyramid, and edges with two equivalent O(1)ZnGaFe2 trigonal pyramids.