Cr2SiO4 crystallizes in the orthorhombic Fddd space group. The structure is three-dimensional. Cr2+ is bonded in a 4-coordinate geometry to six equivalent O2- atoms. There are a spread of Cr–O bond distances ranging from 2.04–2.75 Å. Si4+ is bonded in a tetrahedral geometry to four equivalent O2- atoms. All Si–O bond lengths are 1.65 Å. O2- is bonded in a 3-coordinate geometry to three equivalent Cr2+ and one Si4+ atom.