CaMg14Sn crystallizes in the orthorhombic Amm2 space group. Ca(1) is bonded to two equivalent Mg(6), four equivalent Mg(3), four equivalent Mg(5), and two equivalent Sn(1) atoms to form CaMg10Sn2 cuboctahedra that share corners with four equivalent Mg(2)Mg12 cuboctahedra, corners with six equivalent Ca(1)Mg10Sn2 cuboctahedra, corners with eight equivalent Mg(4)Mg12 cuboctahedra, edges with two equivalent Sn(1)Ca2Mg10 cuboctahedra, edges with four equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, edges with four equivalent Mg(6)CaMg11 cuboctahedra, edges with eight equivalent Mg(5)CaMg10Sn cuboctahedra, faces with two equivalent Mg(6)CaMg11 cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent Sn(1)Ca2Mg10 cuboctahedra, faces with four equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, faces with four equivalent Mg(5)CaMg10Sn cuboctahedra, and faces with six equivalent Mg(7)Mg11Sn cuboctahedra. There are seven inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to two equivalent Mg(2), two equivalent Mg(6), four equivalent Mg(4), and four equivalent Mg(5) atoms to form MgMg12 cuboctahedra that share corners with four equivalent Sn(1)Ca2Mg10 cuboctahedra, corners with six equivalent Mg(1)Mg12 cuboctahedra, corners with eight equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with four equivalent Mg(6)CaMg11 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with eight equivalent Mg(5)CaMg10Sn cuboctahedra, faces with two equivalent Ca(1)Mg10Sn2 cuboctahedra, faces with two equivalent Mg(6)CaMg11 cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, faces with four equivalent Mg(5)CaMg10Sn cuboctahedra, faces with four equivalent Mg(4)Mg12 cuboctahedra, and faces with six equivalent Mg(7)Mg11Sn cuboctahedra. In the second Mg site, Mg(2) is bonded to two equivalent Mg(1), two equivalent Mg(7), four equivalent Mg(4), and four equivalent Mg(5) atoms to form MgMg12 cuboctahedra that share corners with four equivalent Ca(1)Mg10Sn2 cuboctahedra, corners with six equivalent Mg(2)Mg12 cuboctahedra, corners with eight equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with four equivalent Mg(7)Mg11Sn cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with eight equivalent Mg(5)CaMg10Sn cuboctahedra, faces with two equivalent Mg(7)Mg11Sn cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent Sn(1)Ca2Mg10 cuboctahedra, faces with four equivalent Mg(5)CaMg10Sn cuboctahedra, faces with four equivalent Mg(4)Mg12 cuboctahedra, and faces with six equivalent Mg(6)CaMg11 cuboctahedra. In the third Mg site, Mg(3) is bonded to two equivalent Ca(1), two equivalent Mg(3), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), and two equivalent Sn(1) atoms to form distorted MgCa2Mg8Sn2 cuboctahedra that share corners with four equivalent Mg(1)Mg12 cuboctahedra, corners with four equivalent Mg(2)Mg12 cuboctahedra, corners with four equivalent Mg(4)Mg12 cuboctahedra, corners with six equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, edges with two equivalent Ca(1)Mg10Sn2 cuboctahedra, edges with two equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, edges with two equivalent Sn(1)Ca2Mg10 cuboctahedra, edges with four equivalent Mg(5)CaMg10Sn cuboctahedra, edges with four equivalent Mg(6)CaMg11 cuboctahedra, edges with four equivalent Mg(7)Mg11Sn cuboctahedra, faces with two equivalent Ca(1)Mg10Sn2 cuboctahedra, faces with two equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, faces with two equivalent Mg(6)CaMg11 cuboctahedra, faces with two equivalent Mg(7)Mg11Sn cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, faces with two equivalent Sn(1)Ca2Mg10 cuboctahedra, and faces with eight equivalent Mg(5)CaMg10Sn cuboctahedra. In the fourth Mg site, Mg(4) is bonded to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(4), two equivalent Mg(5), two equivalent Mg(6), and two equivalent Mg(7) atoms to form MgMg12 cuboctahedra that share corners with four equivalent Ca(1)Mg10Sn2 cuboctahedra, corners with four equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, corners with four equivalent Sn(1)Ca2Mg10 cuboctahedra, corners with six equivalent Mg(4)Mg12 cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with two equivalent Mg(4)Mg12 cuboctahedra, edges with four equivalent Mg(5)CaMg10Sn cuboctahedra, edges with four equivalent Mg(6)CaMg11 cuboctahedra, edges with four equivalent Mg(7)Mg11Sn cuboctahedra, faces with two equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, faces with two equivalent Mg(6)CaMg11 cuboctahedra, faces with two equivalent Mg(7)Mg11Sn cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, and faces with eight equivalent Mg(5)CaMg10Sn cuboctahedra. In the fifth Mg site, Mg(5) is bonded to one Ca(1), one Mg(1), one Mg(2), one Mg(3), one Mg(4), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), and one Sn(1) atom to form distorted MgCaMg10Sn cuboctahedra that share corners with four equivalent Mg(6)CaMg11 cuboctahedra, corners with four equivalent Mg(7)Mg11Sn cuboctahedra, corners with ten equivalent Mg(5)CaMg10Sn cuboctahedra, edges with two equivalent Ca(1)Mg10Sn2 cuboctahedra, edges with two equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, edges with two equivalent Mg(5)CaMg10Sn cuboctahedra, edges with two equivalent Mg(6)CaMg11 cuboctahedra, edges with two equivalent Mg(7)Mg11Sn cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with two equivalent Mg(4)Mg12 cuboctahedra, edges with two equivalent Sn(1)Ca2Mg10 cuboctahedra,  a faceface with one Ca(1)Mg10Sn2 cuboctahedra,  a faceface with one Mg(1)Mg12 cuboctahedra,  a faceface with one Mg(2)Mg12 cuboctahedra,  a faceface with one Sn(1)Ca2Mg10 cuboctahedra, faces with two equivalent Mg(6)CaMg11 cuboctahedra, faces with two equivalent Mg(7)Mg11Sn cuboctahedra, faces with four equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, faces with four equivalent Mg(5)CaMg10Sn cuboctahedra, and faces with four equivalent Mg(4)Mg12 cuboctahedra. In the sixth Mg site, Mg(6) is bonded to one Ca(1), one Mg(1), two equivalent Mg(3), two equivalent Mg(4), two equivalent Mg(7), and four equivalent Mg(5) atoms to form MgCaMg11 cuboctahedra that share corners with four equivalent Mg(7)Mg11Sn cuboctahedra, corners with six equivalent Mg(6)CaMg11 cuboctahedra, corners with eight equivalent Mg(5)CaMg10Sn cuboctahedra, edges with two equivalent Ca(1)Mg10Sn2 cuboctahedra, edges with two equivalent Mg(7)Mg11Sn cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with four equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, edges with four equivalent Mg(5)CaMg10Sn cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra,  a faceface with one Ca(1)Mg10Sn2 cuboctahedra,  a faceface with one Mg(1)Mg12 cuboctahedra, faces with two equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, faces with two equivalent Mg(6)CaMg11 cuboctahedra, faces with two equivalent Mg(7)Mg11Sn cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, faces with three equivalent Mg(2)Mg12 cuboctahedra, faces with three equivalent Sn(1)Ca2Mg10 cuboctahedra, and faces with four equivalent Mg(5)CaMg10Sn cuboctahedra. In the seventh Mg site, Mg(7) is bonded to one Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent Mg(6), four equivalent Mg(5), and one Sn(1) atom to form distorted MgMg11Sn cuboctahedra that share corners with four equivalent Mg(6)CaMg11 cuboctahedra, corners with six equivalent Mg(7)Mg11Sn cuboctahedra, corners with eight equivalent Mg(5)CaMg10Sn cuboctahedra, edges with two equivalent Mg(6)CaMg11 cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with two equivalent Sn(1)Ca2Mg10 cuboctahedra, edges with four equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, edges with four equivalent Mg(5)CaMg10Sn cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra,  a faceface with one Mg(2)Mg12 cuboctahedra,  a faceface with one Sn(1)Ca2Mg10 cuboctahedra, faces with two equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, faces with two equivalent Mg(6)CaMg11 cuboctahedra, faces with two equivalent Mg(7)Mg11Sn cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, faces with three equivalent Ca(1)Mg10Sn2 cuboctahedra, faces with three equivalent Mg(1)Mg12 cuboctahedra, and faces with four equivalent Mg(5)CaMg10Sn cuboctahedra. Sn(1) is bonded to two equivalent Ca(1), two equivalent Mg(7), four equivalent Mg(3), and four equivalent Mg(5) atoms to form SnCa2Mg10 cuboctahedra that share corners with four equivalent Mg(1)Mg12 cuboctahedra, corners with six equivalent Sn(1)Ca2Mg10 cuboctahedra, corners with eight equivalent Mg(4)Mg12 cuboctahedra, edges with two equivalent Ca(1)Mg10Sn2 cuboctahedra, edges with four equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, edges with four equivalent Mg(7)Mg11Sn cuboctahedra, edges with eight equivalent Mg(5)CaMg10Sn cuboctahedra, faces with two equivalent Ca(1)Mg10Sn2 cuboctahedra, faces with two equivalent Mg(7)Mg11Sn cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, faces with four equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, faces with four equivalent Mg(5)CaMg10Sn cuboctahedra, and faces with six equivalent Mg(6)CaMg11 cuboctahedra.
CaMg14Sn crystallizes in the orthorhombic Amm2 space group. Ca(1) is bonded to two equivalent Mg(6), four equivalent Mg(3), four equivalent Mg(5), and two equivalent Sn(1) atoms to form CaMg10Sn2 cuboctahedra that share corners with four equivalent Mg(2)Mg12 cuboctahedra, corners with six equivalent Ca(1)Mg10Sn2 cuboctahedra, corners with eight equivalent Mg(4)Mg12 cuboctahedra, edges with two equivalent Sn(1)Ca2Mg10 cuboctahedra, edges with four equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, edges with four equivalent Mg(6)CaMg11 cuboctahedra, edges with eight equivalent Mg(5)CaMg10Sn cuboctahedra, faces with two equivalent Mg(6)CaMg11 cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent Sn(1)Ca2Mg10 cuboctahedra, faces with four equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, faces with four equivalent Mg(5)CaMg10Sn cuboctahedra, and faces with six equivalent Mg(7)Mg11Sn cuboctahedra. Both Ca(1)-Mg(6) bond lengths are 3.32 Å. There are two shorter (3.24 Å) and two longer (3.28 Å) Ca(1)-Mg(3) bond lengths. All Ca(1)-Mg(5) bond lengths are 3.31 Å. Both Ca(1)-Sn(1) bond lengths are 3.19 Å. There are seven inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to two equivalent Mg(2), two equivalent Mg(6), four equivalent Mg(4), and four equivalent Mg(5) atoms to form MgMg12 cuboctahedra that share corners with four equivalent Sn(1)Ca2Mg10 cuboctahedra, corners with six equivalent Mg(1)Mg12 cuboctahedra, corners with eight equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with four equivalent Mg(6)CaMg11 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with eight equivalent Mg(5)CaMg10Sn cuboctahedra, faces with two equivalent Ca(1)Mg10Sn2 cuboctahedra, faces with two equivalent Mg(6)CaMg11 cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, faces with four equivalent Mg(5)CaMg10Sn cuboctahedra, faces with four equivalent Mg(4)Mg12 cuboctahedra, and faces with six equivalent Mg(7)Mg11Sn cuboctahedra. Both Mg(1)-Mg(2) bond lengths are 3.19 Å. Both Mg(1)-Mg(6) bond lengths are 3.20 Å. All Mg(1)-Mg(4) bond lengths are 3.26 Å. All Mg(1)-Mg(5) bond lengths are 3.18 Å. In the second Mg site, Mg(2) is bonded to two equivalent Mg(1), two equivalent Mg(7), four equivalent Mg(4), and four equivalent Mg(5) atoms to form MgMg12 cuboctahedra that share corners with four equivalent Ca(1)Mg10Sn2 cuboctahedra, corners with six equivalent Mg(2)Mg12 cuboctahedra, corners with eight equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with four equivalent Mg(7)Mg11Sn cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with eight equivalent Mg(5)CaMg10Sn cuboctahedra, faces with two equivalent Mg(7)Mg11Sn cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent Sn(1)Ca2Mg10 cuboctahedra, faces with four equivalent Mg(5)CaMg10Sn cuboctahedra, faces with four equivalent Mg(4)Mg12 cuboctahedra, and faces with six equivalent Mg(6)CaMg11 cuboctahedra. Both Mg(2)-Mg(7) bond lengths are 3.26 Å. There are two shorter (3.25 Å) and two longer (3.27 Å) Mg(2)-Mg(4) bond lengths. All Mg(2)-Mg(5) bond lengths are 3.17 Å. In the third Mg site, Mg(3) is bonded to two equivalent Ca(1), two equivalent Mg(3), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), and two equivalent Sn(1) atoms to form distorted MgCa2Mg8Sn2 cuboctahedra that share corners with four equivalent Mg(1)Mg12 cuboctahedra, corners with four equivalent Mg(2)Mg12 cuboctahedra, corners with four equivalent Mg(4)Mg12 cuboctahedra, corners with six equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, edges with two equivalent Ca(1)Mg10Sn2 cuboctahedra, edges with two equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, edges with two equivalent Sn(1)Ca2Mg10 cuboctahedra, edges with four equivalent Mg(5)CaMg10Sn cuboctahedra, edges with four equivalent Mg(6)CaMg11 cuboctahedra, edges with four equivalent Mg(7)Mg11Sn cuboctahedra, faces with two equivalent Ca(1)Mg10Sn2 cuboctahedra, faces with two equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, faces with two equivalent Mg(6)CaMg11 cuboctahedra, faces with two equivalent Mg(7)Mg11Sn cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, faces with two equivalent Sn(1)Ca2Mg10 cuboctahedra, and faces with eight equivalent Mg(5)CaMg10Sn cuboctahedra. There is one shorter (3.15 Å) and one longer (3.23 Å) Mg(3)-Mg(3) bond length. Both Mg(3)-Mg(5) bond lengths are 3.30 Å. Both Mg(3)-Mg(6) bond lengths are 3.28 Å. Both Mg(3)-Mg(7) bond lengths are 3.23 Å. There is one shorter (3.20 Å) and one longer (3.32 Å) Mg(3)-Sn(1) bond length. In the fourth Mg site, Mg(4) is bonded to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(4), two equivalent Mg(5), two equivalent Mg(6), and two equivalent Mg(7) atoms to form MgMg12 cuboctahedra that share corners with four equivalent Ca(1)Mg10Sn2 cuboctahedra, corners with four equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, corners with four equivalent Sn(1)Ca2Mg10 cuboctahedra, corners with six equivalent Mg(4)Mg12 cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with two equivalent Mg(4)Mg12 cuboctahedra, edges with four equivalent Mg(5)CaMg10Sn cuboctahedra, edges with four equivalent Mg(6)CaMg11 cuboctahedra, edges with four equivalent Mg(7)Mg11Sn cuboctahedra, faces with two equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, faces with two equivalent Mg(6)CaMg11 cuboctahedra, faces with two equivalent Mg(7)Mg11Sn cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, and faces with eight equivalent Mg(5)CaMg10Sn cuboctahedra. There is one shorter (3.17 Å) and one longer (3.20 Å) Mg(4)-Mg(4) bond length. Both Mg(4)-Mg(5) bond lengths are 3.18 Å. Both Mg(4)-Mg(6) bond lengths are 3.16 Å. Both Mg(4)-Mg(7) bond lengths are 3.23 Å. In the fifth Mg site, Mg(5) is bonded to one Ca(1), one Mg(1), one Mg(2), one Mg(3), one Mg(4), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), and one Sn(1) atom to form distorted MgCaMg10Sn cuboctahedra that share corners with four equivalent Mg(6)CaMg11 cuboctahedra, corners with four equivalent Mg(7)Mg11Sn cuboctahedra, corners with ten equivalent Mg(5)CaMg10Sn cuboctahedra, edges with two equivalent Ca(1)Mg10Sn2 cuboctahedra, edges with two equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, edges with two equivalent Mg(5)CaMg10Sn cuboctahedra, edges with two equivalent Mg(6)CaMg11 cuboctahedra, edges with two equivalent Mg(7)Mg11Sn cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with two equivalent Mg(4)Mg12 cuboctahedra, edges with two equivalent Sn(1)Ca2Mg10 cuboctahedra,  a faceface with one Ca(1)Mg10Sn2 cuboctahedra,  a faceface with one Mg(1)Mg12 cuboctahedra,  a faceface with one Mg(2)Mg12 cuboctahedra,  a faceface with one Sn(1)Ca2Mg10 cuboctahedra, faces with two equivalent Mg(6)CaMg11 cuboctahedra, faces with two equivalent Mg(7)Mg11Sn cuboctahedra, faces with four equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, faces with four equivalent Mg(5)CaMg10Sn cuboctahedra, and faces with four equivalent Mg(4)Mg12 cuboctahedra. There is one shorter (3.16 Å) and one longer (3.21 Å) Mg(5)-Mg(5) bond length. There is one shorter (3.22 Å) and one longer (3.30 Å) Mg(5)-Mg(6) bond length. There is one shorter (3.25 Å) and one longer (3.27 Å) Mg(5)-Mg(7) bond length. The Mg(5)-Sn(1) bond length is 3.28 Å. In the sixth Mg site, Mg(6) is bonded to one Ca(1), one Mg(1), two equivalent Mg(3), two equivalent Mg(4), two equivalent Mg(7), and four equivalent Mg(5) atoms to form MgCaMg11 cuboctahedra that share corners with four equivalent Mg(7)Mg11Sn cuboctahedra, corners with six equivalent Mg(6)CaMg11 cuboctahedra, corners with eight equivalent Mg(5)CaMg10Sn cuboctahedra, edges with two equivalent Ca(1)Mg10Sn2 cuboctahedra, edges with two equivalent Mg(7)Mg11Sn cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with four equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, edges with four equivalent Mg(5)CaMg10Sn cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra,  a faceface with one Ca(1)Mg10Sn2 cuboctahedra,  a faceface with one Mg(1)Mg12 cuboctahedra, faces with two equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, faces with two equivalent Mg(6)CaMg11 cuboctahedra, faces with two equivalent Mg(7)Mg11Sn cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, faces with three equivalent Mg(2)Mg12 cuboctahedra, faces with three equivalent Sn(1)Ca2Mg10 cuboctahedra, and faces with four equivalent Mg(5)CaMg10Sn cuboctahedra. Both Mg(6)-Mg(7) bond lengths are 3.19 Å. In the seventh Mg site, Mg(7) is bonded to one Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent Mg(6), four equivalent Mg(5), and one Sn(1) atom to form distorted MgMg11Sn cuboctahedra that share corners with four equivalent Mg(6)CaMg11 cuboctahedra, corners with six equivalent Mg(7)Mg11Sn cuboctahedra, corners with eight equivalent Mg(5)CaMg10Sn cuboctahedra, edges with two equivalent Mg(6)CaMg11 cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with two equivalent Sn(1)Ca2Mg10 cuboctahedra, edges with four equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, edges with four equivalent Mg(5)CaMg10Sn cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra,  a faceface with one Mg(2)Mg12 cuboctahedra,  a faceface with one Sn(1)Ca2Mg10 cuboctahedra, faces with two equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, faces with two equivalent Mg(6)CaMg11 cuboctahedra, faces with two equivalent Mg(7)Mg11Sn cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, faces with three equivalent Ca(1)Mg10Sn2 cuboctahedra, faces with three equivalent Mg(1)Mg12 cuboctahedra, and faces with four equivalent Mg(5)CaMg10Sn cuboctahedra. The Mg(7)-Sn(1) bond length is 3.27 Å. Sn(1) is bonded to two equivalent Ca(1), two equivalent Mg(7), four equivalent Mg(3), and four equivalent Mg(5) atoms to form SnCa2Mg10 cuboctahedra that share corners with four equivalent Mg(1)Mg12 cuboctahedra, corners with six equivalent Sn(1)Ca2Mg10 cuboctahedra, corners with eight equivalent Mg(4)Mg12 cuboctahedra, edges with two equivalent Ca(1)Mg10Sn2 cuboctahedra, edges with four equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, edges with four equivalent Mg(7)Mg11Sn cuboctahedra, edges with eight equivalent Mg(5)CaMg10Sn cuboctahedra, faces with two equivalent Ca(1)Mg10Sn2 cuboctahedra, faces with two equivalent Mg(7)Mg11Sn cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, faces with four equivalent Mg(3)Ca2Mg8Sn2 cuboctahedra, faces with four equivalent Mg(5)CaMg10Sn cuboctahedra, and faces with six equivalent Mg(6)CaMg11 cuboctahedra.