CaW3Al2Si3O10 crystallizes in the monoclinic Cc space group. Ca(1) is bonded in a distorted water-like geometry to one W(1), one W(2), one W(3), one O(10), and one O(6) atom. There are three inequivalent W sites. In the first W site, W(1) is bonded in a 3-coordinate geometry to one Ca(1), one O(4), and one O(5) atom. In the second W site, W(2) is bonded in a 3-coordinate geometry to one Ca(1), one O(2), and one O(7) atom. In the third W site, W(3) is bonded in a 2-coordinate geometry to one Ca(1) and one O(3) atom. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form AlO4 tetrahedra that share  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra, and corners with two equivalent Si(1)O4 tetrahedra. In the second Al site, Al(2) is bonded to one O(10), one O(6), one O(8), and one O(9) atom to form AlO4 tetrahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra, and corners with two equivalent Si(3)O4 tetrahedra. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(1), one O(4), one O(5), and one O(6) atom to form SiO4 tetrahedra that share  a cornercorner with one Al(2)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra, and corners with two equivalent Al(1)O4 tetrahedra. In the second Si site, Si(2) is bonded to one O(1), one O(2), one O(7), and one O(8) atom to form SiO4 tetrahedra that share  a cornercorner with one Al(1)O4 tetrahedra,  a cornercorner with one Al(2)O4 tetrahedra,  a cornercorner with one Si(1)O4 tetrahedra, and  a cornercorner with one Si(3)O4 tetrahedra. In the third Si site, Si(3) is bonded to one O(10), one O(3), one O(7), and one O(9) atom to form SiO4 tetrahedra that share  a cornercorner with one Al(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra, and corners with two equivalent Al(2)O4 tetrahedra. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Si(1) and one Si(2) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one W(2), one Al(1), and one Si(2) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one W(3), one Al(1), and one Si(3) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one W(1), one Al(1), and one Si(1) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one W(1), one Al(1), and one Si(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Ca(1), one Al(2), and one Si(1) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one W(2), one Si(2), and one Si(3) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Al(2) and one Si(2) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Al(2) and one Si(3) atom. In the tenth O site, O(10) is bonded in a trigonal planar geometry to one Ca(1), one Al(2), and one Si(3) atom.
CaW3Al2Si3O10 crystallizes in the monoclinic Cc space group. Ca(1) is bonded in a distorted water-like geometry to one W(1), one W(2), one W(3), one O(10), and one O(6) atom. The Ca(1)-W(1) bond length is 3.19 Å. The Ca(1)-W(2) bond length is 3.35 Å. The Ca(1)-W(3) bond length is 3.17 Å. The Ca(1)-O(10) bond length is 2.36 Å. The Ca(1)-O(6) bond length is 2.38 Å. There are three inequivalent W sites. In the first W site, W(1) is bonded in a 3-coordinate geometry to one Ca(1), one O(4), and one O(5) atom. The W(1)-O(4) bond length is 2.58 Å. The W(1)-O(5) bond length is 2.67 Å. In the second W site, W(2) is bonded in a 3-coordinate geometry to one Ca(1), one O(2), and one O(7) atom. The W(2)-O(2) bond length is 2.80 Å. The W(2)-O(7) bond length is 2.95 Å. In the third W site, W(3) is bonded in a 2-coordinate geometry to one Ca(1) and one O(3) atom. The W(3)-O(3) bond length is 2.48 Å. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form AlO4 tetrahedra that share  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra, and corners with two equivalent Si(1)O4 tetrahedra. The Al(1)-O(2) bond length is 1.76 Å. The Al(1)-O(3) bond length is 1.79 Å. The Al(1)-O(4) bond length is 1.79 Å. The Al(1)-O(5) bond length is 1.76 Å. In the second Al site, Al(2) is bonded to one O(10), one O(6), one O(8), and one O(9) atom to form AlO4 tetrahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra, and corners with two equivalent Si(3)O4 tetrahedra. The Al(2)-O(10) bond length is 1.78 Å. The Al(2)-O(6) bond length is 1.81 Å. The Al(2)-O(8) bond length is 1.72 Å. The Al(2)-O(9) bond length is 1.75 Å. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(1), one O(4), one O(5), and one O(6) atom to form SiO4 tetrahedra that share  a cornercorner with one Al(2)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra, and corners with two equivalent Al(1)O4 tetrahedra. The Si(1)-O(1) bond length is 1.64 Å. The Si(1)-O(4) bond length is 1.65 Å. The Si(1)-O(5) bond length is 1.63 Å. The Si(1)-O(6) bond length is 1.66 Å. In the second Si site, Si(2) is bonded to one O(1), one O(2), one O(7), and one O(8) atom to form SiO4 tetrahedra that share  a cornercorner with one Al(1)O4 tetrahedra,  a cornercorner with one Al(2)O4 tetrahedra,  a cornercorner with one Si(1)O4 tetrahedra, and  a cornercorner with one Si(3)O4 tetrahedra. The Si(2)-O(1) bond length is 1.64 Å. The Si(2)-O(2) bond length is 1.64 Å. The Si(2)-O(7) bond length is 1.64 Å. The Si(2)-O(8) bond length is 1.61 Å. In the third Si site, Si(3) is bonded to one O(10), one O(3), one O(7), and one O(9) atom to form SiO4 tetrahedra that share  a cornercorner with one Al(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra, and corners with two equivalent Al(2)O4 tetrahedra. The Si(3)-O(10) bond length is 1.65 Å. The Si(3)-O(3) bond length is 1.64 Å. The Si(3)-O(7) bond length is 1.62 Å. The Si(3)-O(9) bond length is 1.62 Å. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Si(1) and one Si(2) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one W(2), one Al(1), and one Si(2) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one W(3), one Al(1), and one Si(3) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one W(1), one Al(1), and one Si(1) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one W(1), one Al(1), and one Si(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Ca(1), one Al(2), and one Si(1) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one W(2), one Si(2), and one Si(3) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Al(2) and one Si(2) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Al(2) and one Si(3) atom. In the tenth O site, O(10) is bonded in a trigonal planar geometry to one Ca(1), one Al(2), and one Si(3) atom.