AgZn3(AsO4)3 crystallizes in the monoclinic C2/c space group. Ag(1) is bonded in a distorted square co-planar geometry to four equivalent O(1) atoms. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms to form distorted ZnO6 octahedra that share corners with two equivalent As(1)O4 tetrahedra, corners with four equivalent As(2)O4 tetrahedra, and edges with two equivalent Zn(2)O6 octahedra. In the second Zn site, Zn(2) is bonded to one O(1), one O(3), one O(4), one O(6), and two equivalent O(5) atoms to form ZnO6 octahedra that share corners with two equivalent As(1)O4 tetrahedra, corners with four equivalent As(2)O4 tetrahedra,  an edgeedge with one Zn(1)O6 octahedra, and  an edgeedge with one Zn(2)O6 octahedra. There are two inequivalent As sites. In the first As site, As(1) is bonded to two equivalent O(3) and two equivalent O(6) atoms to form AsO4 tetrahedra that share corners with two equivalent Zn(1)O6 octahedra and corners with four equivalent Zn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 58-59°. In the second As site, As(2) is bonded to one O(1), one O(2), one O(4), and one O(5) atom to form AsO4 tetrahedra that share corners with two equivalent Zn(1)O6 octahedra and corners with four equivalent Zn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-64°. There are six inequivalent O sites. In the first O site, O(2) is bonded in a bent 120 degrees geometry to one Zn(1) and one As(2) atom. In the second O site, O(3) is bonded in a bent 120 degrees geometry to one Zn(2) and one As(1) atom. In the third O site, O(4) is bonded in a distorted trigonal planar geometry to one Zn(1), one Zn(2), and one As(2) atom. In the fourth O site, O(5) is bonded in a distorted trigonal planar geometry to two equivalent Zn(2) and one As(2) atom. In the fifth O site, O(6) is bonded in a distorted trigonal planar geometry to one Zn(1), one Zn(2), and one As(1) atom. In the sixth O site, O(1) is bonded to two equivalent Ag(1), one Zn(2), and one As(2) atom to form a mixture of distorted edge and corner-sharing OZnAg2As tetrahedra.
AgZn3(AsO4)3 crystallizes in the monoclinic C2/c space group. Ag(1) is bonded in a distorted square co-planar geometry to four equivalent O(1) atoms. There are two shorter (2.26 Å) and two longer (2.36 Å) Ag(1)-O(1) bond lengths. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms to form distorted ZnO6 octahedra that share corners with two equivalent As(1)O4 tetrahedra, corners with four equivalent As(2)O4 tetrahedra, and edges with two equivalent Zn(2)O6 octahedra. Both Zn(1)-O(2) bond lengths are 2.05 Å. Both Zn(1)-O(4) bond lengths are 2.17 Å. Both Zn(1)-O(6) bond lengths are 2.21 Å. In the second Zn site, Zn(2) is bonded to one O(1), one O(3), one O(4), one O(6), and two equivalent O(5) atoms to form ZnO6 octahedra that share corners with two equivalent As(1)O4 tetrahedra, corners with four equivalent As(2)O4 tetrahedra,  an edgeedge with one Zn(1)O6 octahedra, and  an edgeedge with one Zn(2)O6 octahedra. The Zn(2)-O(1) bond length is 2.22 Å. The Zn(2)-O(3) bond length is 1.99 Å. The Zn(2)-O(4) bond length is 2.10 Å. The Zn(2)-O(6) bond length is 2.09 Å. There is one shorter (2.13 Å) and one longer (2.16 Å) Zn(2)-O(5) bond length. There are two inequivalent As sites. In the first As site, As(1) is bonded to two equivalent O(3) and two equivalent O(6) atoms to form AsO4 tetrahedra that share corners with two equivalent Zn(1)O6 octahedra and corners with four equivalent Zn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 58-59°. Both As(1)-O(3) bond lengths are 1.72 Å. Both As(1)-O(6) bond lengths are 1.75 Å. In the second As site, As(2) is bonded to one O(1), one O(2), one O(4), and one O(5) atom to form AsO4 tetrahedra that share corners with two equivalent Zn(1)O6 octahedra and corners with four equivalent Zn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-64°. The As(2)-O(1) bond length is 1.80 Å. The As(2)-O(2) bond length is 1.68 Å. The As(2)-O(4) bond length is 1.74 Å. The As(2)-O(5) bond length is 1.72 Å. There are six inequivalent O sites. In the first O site, O(2) is bonded in a bent 120 degrees geometry to one Zn(1) and one As(2) atom. In the second O site, O(3) is bonded in a bent 120 degrees geometry to one Zn(2) and one As(1) atom. In the third O site, O(4) is bonded in a distorted trigonal planar geometry to one Zn(1), one Zn(2), and one As(2) atom. In the fourth O site, O(5) is bonded in a distorted trigonal planar geometry to two equivalent Zn(2) and one As(2) atom. In the fifth O site, O(6) is bonded in a distorted trigonal planar geometry to one Zn(1), one Zn(2), and one As(1) atom. In the sixth O site, O(1) is bonded to two equivalent Ag(1), one Zn(2), and one As(2) atom to form a mixture of distorted edge and corner-sharing OZnAg2As tetrahedra.