Hg(SbO3)2 is Hydrophilite-derived structured and crystallizes in the tetragonal P4_2/mnm space group. Hg(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form HgO6 octahedra that share corners with eight equivalent Sb(1)O6 octahedra and edges with two equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-57°. Sb(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form SbO6 octahedra that share corners with four equivalent Hg(1)O6 octahedra, corners with four equivalent Sb(1)O6 octahedra,  an edgeedge with one Hg(1)O6 octahedra, and  an edgeedge with one Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 39-57°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Hg(1) and two equivalent Sb(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Hg(1) and two equivalent Sb(1) atoms.
Hg(SbO3)2 is Hydrophilite-derived structured and crystallizes in the tetragonal P4_2/mnm space group. Hg(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form HgO6 octahedra that share corners with eight equivalent Sb(1)O6 octahedra and edges with two equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-57°. Both Hg(1)-O(1) bond lengths are 2.27 Å. All Hg(1)-O(2) bond lengths are 2.35 Å. Sb(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form SbO6 octahedra that share corners with four equivalent Hg(1)O6 octahedra, corners with four equivalent Sb(1)O6 octahedra,  an edgeedge with one Hg(1)O6 octahedra, and  an edgeedge with one Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 39-57°. Both Sb(1)-O(1) bond lengths are 2.05 Å. All Sb(1)-O(2) bond lengths are 2.03 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Hg(1) and two equivalent Sb(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Hg(1) and two equivalent Sb(1) atoms.