Li2CrSiO4 is beta beryllia-derived structured and crystallizes in the orthorhombic Pna2_1 space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form LiO4 tetrahedra that share corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Cr(1)O4 tetrahedra, corners with four equivalent Si(1)O4 tetrahedra,  an edgeedge with one Li(2)O4 tetrahedra, and  an edgeedge with one Cr(1)O4 tetrahedra. In the second Li site, Li(2) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form LiO4 tetrahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with four equivalent Cr(1)O4 tetrahedra, corners with four equivalent Si(1)O4 tetrahedra, and  an edgeedge with one Li(1)O4 tetrahedra. Cr(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form CrO4 tetrahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with four equivalent Li(2)O4 tetrahedra, corners with four equivalent Si(1)O4 tetrahedra, and  an edgeedge with one Li(1)O4 tetrahedra. Si(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form SiO4 tetrahedra that share corners with four equivalent Li(1)O4 tetrahedra, corners with four equivalent Li(2)O4 tetrahedra, and corners with four equivalent Cr(1)O4 tetrahedra. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Li(2), one Cr(1), and one Si(1) atom to form a mixture of distorted edge and corner-sharing OLi2CrSi trigonal pyramids. In the second O site, O(2) is bonded to one Li(1), one Li(2), one Cr(1), and one Si(1) atom to form corner-sharing OLi2CrSi tetrahedra. In the third O site, O(3) is bonded to one Li(1), one Li(2), one Cr(1), and one Si(1) atom to form a mixture of distorted edge and corner-sharing OLi2CrSi tetrahedra. In the fourth O site, O(4) is bonded to one Li(1), one Li(2), one Cr(1), and one Si(1) atom to form a mixture of distorted edge and corner-sharing OLi2CrSi tetrahedra.
Li2CrSiO4 is beta beryllia-derived structured and crystallizes in the orthorhombic Pna2_1 space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form LiO4 tetrahedra that share corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Cr(1)O4 tetrahedra, corners with four equivalent Si(1)O4 tetrahedra,  an edgeedge with one Li(2)O4 tetrahedra, and  an edgeedge with one Cr(1)O4 tetrahedra. The Li(1)-O(1) bond length is 2.10 Å. The Li(1)-O(2) bond length is 1.98 Å. The Li(1)-O(3) bond length is 2.10 Å. The Li(1)-O(4) bond length is 2.11 Å. In the second Li site, Li(2) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form LiO4 tetrahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with four equivalent Cr(1)O4 tetrahedra, corners with four equivalent Si(1)O4 tetrahedra, and  an edgeedge with one Li(1)O4 tetrahedra. The Li(2)-O(1) bond length is 1.95 Å. The Li(2)-O(2) bond length is 1.95 Å. The Li(2)-O(3) bond length is 2.05 Å. The Li(2)-O(4) bond length is 1.97 Å. Cr(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form CrO4 tetrahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with four equivalent Li(2)O4 tetrahedra, corners with four equivalent Si(1)O4 tetrahedra, and  an edgeedge with one Li(1)O4 tetrahedra. The Cr(1)-O(1) bond length is 2.01 Å. The Cr(1)-O(2) bond length is 2.08 Å. The Cr(1)-O(3) bond length is 2.11 Å. The Cr(1)-O(4) bond length is 2.12 Å. Si(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form SiO4 tetrahedra that share corners with four equivalent Li(1)O4 tetrahedra, corners with four equivalent Li(2)O4 tetrahedra, and corners with four equivalent Cr(1)O4 tetrahedra. The Si(1)-O(1) bond length is 1.65 Å. The Si(1)-O(2) bond length is 1.66 Å. The Si(1)-O(3) bond length is 1.66 Å. The Si(1)-O(4) bond length is 1.65 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Li(2), one Cr(1), and one Si(1) atom to form a mixture of distorted edge and corner-sharing OLi2CrSi trigonal pyramids. In the second O site, O(2) is bonded to one Li(1), one Li(2), one Cr(1), and one Si(1) atom to form corner-sharing OLi2CrSi tetrahedra. In the third O site, O(3) is bonded to one Li(1), one Li(2), one Cr(1), and one Si(1) atom to form a mixture of distorted edge and corner-sharing OLi2CrSi tetrahedra. In the fourth O site, O(4) is bonded to one Li(1), one Li(2), one Cr(1), and one Si(1) atom to form a mixture of distorted edge and corner-sharing OLi2CrSi tetrahedra.