CsCaMg14 crystallizes in the orthorhombic Amm2 space group. Cs(1) is bonded to two equivalent Ca(1), two equivalent Mg(7), four equivalent Mg(3), and four equivalent Mg(5) atoms to form CsCa2Mg10 cuboctahedra that share corners with four equivalent Mg(1)Mg12 cuboctahedra, corners with six equivalent Cs(1)Ca2Mg10 cuboctahedra, corners with eight equivalent Mg(4)Mg12 cuboctahedra, edges with two equivalent Ca(1)Cs2Mg10 cuboctahedra, faces with two equivalent Ca(1)Cs2Mg10 cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, and faces with six equivalent Mg(6)CaMg11 cuboctahedra. Ca(1) is bonded to two equivalent Cs(1), two equivalent Mg(6), four equivalent Mg(3), and four equivalent Mg(5) atoms to form CaCs2Mg10 cuboctahedra that share corners with four equivalent Mg(2)Mg12 cuboctahedra, corners with six equivalent Ca(1)Cs2Mg10 cuboctahedra, corners with eight equivalent Mg(4)Mg12 cuboctahedra, edges with two equivalent Cs(1)Ca2Mg10 cuboctahedra, edges with four equivalent Mg(6)CaMg11 cuboctahedra, faces with two equivalent Cs(1)Ca2Mg10 cuboctahedra, faces with two equivalent Mg(6)CaMg11 cuboctahedra, and faces with two equivalent Mg(1)Mg12 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 Cs(1)Ca2Mg10 cuboctahedra, corners with six equivalent Mg(1)Mg12 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, faces with two equivalent Ca(1)Cs2Mg10 cuboctahedra, faces with two equivalent Mg(6)CaMg11 cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, and faces with four equivalent Mg(4)Mg12 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)Cs2Mg10 cuboctahedra, corners with six equivalent Mg(2)Mg12 cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, faces with two equivalent Cs(1)Ca2Mg10 cuboctahedra, faces with two equivalent Mg(1)Mg12 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 in a 4-coordinate geometry to two equivalent Cs(1), two equivalent Ca(1), two equivalent Mg(5), two equivalent Mg(6), and two equivalent Mg(7) atoms. 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 Cs(1)Ca2Mg10 cuboctahedra, corners with four equivalent Ca(1)Cs2Mg10 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(6)CaMg11 cuboctahedra, faces with two equivalent Mg(6)CaMg11 cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, and faces with two equivalent Mg(4)Mg12 cuboctahedra. In the fifth Mg site, Mg(5) is bonded in a 12-coordinate geometry to one Cs(1), one Ca(1), one Mg(1), one Mg(2), one Mg(3), one Mg(4), two equivalent Mg(5), two equivalent Mg(6), and two equivalent Mg(7) atoms. 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 distorted MgCaMg11 cuboctahedra that share corners with six equivalent Mg(6)CaMg11 cuboctahedra, edges with two equivalent Ca(1)Cs2Mg10 cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra,  a faceface with one Ca(1)Cs2Mg10 cuboctahedra,  a faceface with one Mg(1)Mg12 cuboctahedra, faces with two equivalent Mg(6)CaMg11 cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, faces with three equivalent Cs(1)Ca2Mg10 cuboctahedra, and faces with three equivalent Mg(2)Mg12 cuboctahedra. In the seventh Mg site, Mg(7) is bonded in a 12-coordinate geometry to one Cs(1), one Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent Mg(6), and four equivalent Mg(5) atoms.
CsCaMg14 crystallizes in the orthorhombic Amm2 space group. Cs(1) is bonded to two equivalent Ca(1), two equivalent Mg(7), four equivalent Mg(3), and four equivalent Mg(5) atoms to form CsCa2Mg10 cuboctahedra that share corners with four equivalent Mg(1)Mg12 cuboctahedra, corners with six equivalent Cs(1)Ca2Mg10 cuboctahedra, corners with eight equivalent Mg(4)Mg12 cuboctahedra, edges with two equivalent Ca(1)Cs2Mg10 cuboctahedra, faces with two equivalent Ca(1)Cs2Mg10 cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, and faces with six equivalent Mg(6)CaMg11 cuboctahedra. Both Cs(1)-Ca(1) bond lengths are 3.34 Å. Both Cs(1)-Mg(7) bond lengths are 3.56 Å. There are two shorter (3.31 Å) and two longer (3.34 Å) Cs(1)-Mg(3) bond lengths. All Cs(1)-Mg(5) bond lengths are 3.63 Å. Ca(1) is bonded to two equivalent Cs(1), two equivalent Mg(6), four equivalent Mg(3), and four equivalent Mg(5) atoms to form CaCs2Mg10 cuboctahedra that share corners with four equivalent Mg(2)Mg12 cuboctahedra, corners with six equivalent Ca(1)Cs2Mg10 cuboctahedra, corners with eight equivalent Mg(4)Mg12 cuboctahedra, edges with two equivalent Cs(1)Ca2Mg10 cuboctahedra, edges with four equivalent Mg(6)CaMg11 cuboctahedra, faces with two equivalent Cs(1)Ca2Mg10 cuboctahedra, faces with two equivalent Mg(6)CaMg11 cuboctahedra, and faces with two equivalent Mg(1)Mg12 cuboctahedra. Both Ca(1)-Mg(6) bond lengths are 3.43 Å. There are two shorter (3.27 Å) and two longer (3.38 Å) Ca(1)-Mg(3) bond lengths. All Ca(1)-Mg(5) bond lengths are 3.57 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 Cs(1)Ca2Mg10 cuboctahedra, corners with six equivalent Mg(1)Mg12 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, faces with two equivalent Ca(1)Cs2Mg10 cuboctahedra, faces with two equivalent Mg(6)CaMg11 cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, and faces with four equivalent Mg(4)Mg12 cuboctahedra. Both Mg(1)-Mg(2) bond lengths are 3.34 Å. Both Mg(1)-Mg(6) bond lengths are 3.31 Å. There are two shorter (3.25 Å) and two longer (3.40 Å) Mg(1)-Mg(4) bond lengths. All Mg(1)-Mg(5) bond lengths are 3.15 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)Cs2Mg10 cuboctahedra, corners with six equivalent Mg(2)Mg12 cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, faces with two equivalent Cs(1)Ca2Mg10 cuboctahedra, faces with two equivalent Mg(1)Mg12 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 3.23 Å. There are two shorter (3.29 Å) and two longer (3.36 Å) Mg(2)-Mg(4) bond lengths. All Mg(2)-Mg(5) bond lengths are 3.18 Å. In the third Mg site, Mg(3) is bonded in a 4-coordinate geometry to two equivalent Cs(1), two equivalent Ca(1), two equivalent Mg(5), two equivalent Mg(6), and two equivalent Mg(7) atoms. Both Mg(3)-Mg(5) bond lengths are 3.55 Å. Both Mg(3)-Mg(6) bond lengths are 3.37 Å. Both Mg(3)-Mg(7) bond lengths are 3.51 Å. 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 Cs(1)Ca2Mg10 cuboctahedra, corners with four equivalent Ca(1)Cs2Mg10 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(6)CaMg11 cuboctahedra, faces with two equivalent Mg(6)CaMg11 cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, and faces with two equivalent Mg(4)Mg12 cuboctahedra. There is one shorter (3.31 Å) and one longer (3.37 Å) Mg(4)-Mg(4) bond length. Both Mg(4)-Mg(5) bond lengths are 3.11 Å. Both Mg(4)-Mg(6) bond lengths are 3.31 Å. Both Mg(4)-Mg(7) bond lengths are 3.16 Å. In the fifth Mg site, Mg(5) is bonded in a 12-coordinate geometry to one Cs(1), one Ca(1), one Mg(1), one Mg(2), one Mg(3), one Mg(4), two equivalent Mg(5), two equivalent Mg(6), and two equivalent Mg(7) atoms. There is one shorter (3.26 Å) and one longer (3.42 Å) Mg(5)-Mg(5) bond length. There is one shorter (3.29 Å) and one longer (3.39 Å) Mg(5)-Mg(6) bond length. There is one shorter (3.18 Å) and one longer (3.47 Å) Mg(5)-Mg(7) bond length. 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 distorted MgCaMg11 cuboctahedra that share corners with six equivalent Mg(6)CaMg11 cuboctahedra, edges with two equivalent Ca(1)Cs2Mg10 cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra,  a faceface with one Ca(1)Cs2Mg10 cuboctahedra,  a faceface with one Mg(1)Mg12 cuboctahedra, faces with two equivalent Mg(6)CaMg11 cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, faces with three equivalent Cs(1)Ca2Mg10 cuboctahedra, and faces with three equivalent Mg(2)Mg12 cuboctahedra. Both Mg(6)-Mg(7) bond lengths are 3.34 Å. In the seventh Mg site, Mg(7) is bonded in a 12-coordinate geometry to one Cs(1), one Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent Mg(6), and four equivalent Mg(5) atoms.