CaSiO5 crystallizes in the monoclinic C2/c space group. Ca(1) is bonded in a 6-coordinate geometry to two equivalent O(2) and four equivalent O(3) atoms. Si(1) is bonded in a tetrahedral geometry to two equivalent O(2) and two equivalent O(3) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to two equivalent O(2) atoms. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Ca(1), one Si(1), and one O(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Ca(1) and one Si(1) atom.
CaSiO5 crystallizes in the monoclinic C2/c space group. Ca(1) is bonded in a 6-coordinate geometry to two equivalent O(2) and four equivalent O(3) atoms. Both Ca(1)-O(2) bond lengths are 2.52 Å. There are two shorter (2.32 Å) and two longer (2.35 Å) Ca(1)-O(3) bond lengths. Si(1) is bonded in a tetrahedral geometry to two equivalent O(2) and two equivalent O(3) atoms. Both Si(1)-O(2) bond lengths are 1.72 Å. Both Si(1)-O(3) bond lengths are 1.59 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to two equivalent O(2) atoms. Both O(1)-O(2) bond lengths are 1.65 Å. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Ca(1), one Si(1), and one O(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Ca(1) and one Si(1) atom.