MgUO4 is Calcite-like structured and crystallizes in the orthorhombic Cmmm space group. Mg(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form MgO6 octahedra that share corners with eight equivalent U(1)O6 octahedra and edges with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-54°. U(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form UO6 octahedra that share corners with eight equivalent Mg(1)O6 octahedra and edges with two equivalent U(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-54°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Mg(1) and two equivalent U(1) atoms. In the second O site, O(2) is bonded in a trigonal planar geometry to two equivalent Mg(1) and one U(1) atom.
MgUO4 is Calcite-like structured and crystallizes in the orthorhombic Cmmm space group. Mg(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form MgO6 octahedra that share corners with eight equivalent U(1)O6 octahedra and edges with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-54°. Both Mg(1)-O(1) bond lengths are 2.07 Å. All Mg(1)-O(2) bond lengths are 2.20 Å. U(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form UO6 octahedra that share corners with eight equivalent Mg(1)O6 octahedra and edges with two equivalent U(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-54°. Both U(1)-O(2) bond lengths are 1.97 Å. All U(1)-O(1) bond lengths are 2.16 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Mg(1) and two equivalent U(1) atoms. In the second O site, O(2) is bonded in a trigonal planar geometry to two equivalent Mg(1) and one U(1) atom.