MnZnSiO5 crystallizes in the monoclinic C2/c space group. Mn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form MnO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra and corners with four equivalent Si(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 43°. Zn(1) is bonded in a 7-coordinate geometry to one O(3), two equivalent O(2), and four equivalent O(1) atoms. Si(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form SiO4 tetrahedra that share corners with four equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-52°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one Mn(1), two equivalent Zn(1), and one Si(1) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one Mn(1), one Zn(1), and one Si(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to two equivalent Mn(1) and one Zn(1) atom.
MnZnSiO5 crystallizes in the monoclinic C2/c space group. Mn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form MnO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra and corners with four equivalent Si(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 43°. Both Mn(1)-O(1) bond lengths are 1.88 Å. Both Mn(1)-O(2) bond lengths are 1.93 Å. Both Mn(1)-O(3) bond lengths are 1.91 Å. Zn(1) is bonded in a 7-coordinate geometry to one O(3), two equivalent O(2), and four equivalent O(1) atoms. The Zn(1)-O(3) bond length is 2.03 Å. Both Zn(1)-O(2) bond lengths are 2.10 Å. There are two shorter (2.47 Å) and two longer (2.60 Å) Zn(1)-O(1) bond lengths. Si(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form SiO4 tetrahedra that share corners with four equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-52°. Both Si(1)-O(1) bond lengths are 1.63 Å. Both Si(1)-O(2) bond lengths are 1.70 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one Mn(1), two equivalent Zn(1), and one Si(1) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one Mn(1), one Zn(1), and one Si(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to two equivalent Mn(1) and one Zn(1) atom.