U2GeO10 crystallizes in the orthorhombic Fddd space group. U(1) is bonded to one O(1), two equivalent O(2), and four equivalent O(3) atoms to form distorted UO7 pentagonal bipyramids that share corners with two equivalent Ge(1)O4 tetrahedra, edges with two equivalent U(1)O7 pentagonal bipyramids, and  an edgeedge with one Ge(1)O4 tetrahedra. Ge(1) is bonded to four equivalent O(3) atoms to form GeO4 tetrahedra that share corners with four equivalent U(1)O7 pentagonal bipyramids and edges with two equivalent U(1)O7 pentagonal bipyramids. There are three inequivalent O sites. In the first O site, O(3) is bonded in a 3-coordinate geometry to two equivalent U(1) and one Ge(1) atom. In the second O site, O(1) is bonded in a single-bond geometry to one U(1) atom. In the third O site, O(2) is bonded in a single-bond geometry to one U(1) atom.
U2GeO10 crystallizes in the orthorhombic Fddd space group. U(1) is bonded to one O(1), two equivalent O(2), and four equivalent O(3) atoms to form distorted UO7 pentagonal bipyramids that share corners with two equivalent Ge(1)O4 tetrahedra, edges with two equivalent U(1)O7 pentagonal bipyramids, and  an edgeedge with one Ge(1)O4 tetrahedra. The U(1)-O(1) bond length is 2.28 Å. Both U(1)-O(2) bond lengths are 1.81 Å. There are two shorter (2.29 Å) and two longer (2.55 Å) U(1)-O(3) bond lengths. Ge(1) is bonded to four equivalent O(3) atoms to form GeO4 tetrahedra that share corners with four equivalent U(1)O7 pentagonal bipyramids and edges with two equivalent U(1)O7 pentagonal bipyramids. All Ge(1)-O(3) bond lengths are 1.77 Å. There are three inequivalent O sites. In the first O site, O(3) is bonded in a 3-coordinate geometry to two equivalent U(1) and one Ge(1) atom. In the second O site, O(1) is bonded in a single-bond geometry to one U(1) atom. In the third O site, O(2) is bonded in a single-bond geometry to one U(1) atom.