CaMg14TiO16 is alpha Po-derived structured and crystallizes in the orthorhombic Pmmm space group. Ca(1) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(8) atoms to form CaO6 octahedra that share corners with two equivalent Ca(1)O6 octahedra; corners with two equivalent Mg(1)O6 octahedra; corners with two equivalent Ti(1)O6 octahedra; edges with four equivalent Mg(3)O6 octahedra; edges with four Mg(5,5)O6 octahedra; and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedra are not tilted. There are nine inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to two equivalent O(1), two equivalent O(6), and two equivalent O(9) atoms to form MgO6 octahedra that share corners with two equivalent Ca(1)O6 octahedra; corners with two equivalent Mg(1)O6 octahedra; corners with two equivalent Mg(2)O6 octahedra; edges with four equivalent Mg(4)O6 octahedra; edges with four Mg(5,5)O6 octahedra; and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedra are not tilted. In the second Mg site, Mg(2) is bonded to two equivalent O(2), two equivalent O(7), and two equivalent O(9) atoms to form MgO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra; corners with two equivalent Mg(2)O6 octahedra; corners with two equivalent Ti(1)O6 octahedra; edges with four equivalent Mg(4)O6 octahedra; edges with four Mg(6,6)O6 octahedra; and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedra are not tilted. In the third Mg site, Mg(3) is bonded to one O(4), one O(5), two equivalent O(3), and two equivalent O(8) atoms to form MgO6 octahedra that share corners with two equivalent Mg(4)O6 octahedra; corners with four equivalent Mg(3)O6 octahedra; edges with two equivalent Ca(1)O6 octahedra; edges with two Mg(5,5)O6 octahedra; edges with two Mg(6,6)O6 octahedra; edges with two equivalent Ti(1)O6 octahedra; and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-3°. In the fourth Mg site, Mg(4) is bonded to one O(6), one O(7), two equivalent O(3), and two equivalent O(9) atoms to form a mixture of corner and edge-sharing MgO6 octahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the fifth Mg site, Mg(5) is bonded to one O(4), one O(6), two equivalent O(1), and two equivalent O(3) atoms to form MgO6 octahedra that share corners with two equivalent Mg(6)O6 octahedra; corners with four Mg(5,5)O6 octahedra; edges with two equivalent Ca(1)O6 octahedra; edges with two equivalent Mg(1)O6 octahedra; edges with two equivalent Mg(3)O6 octahedra; edges with two equivalent Mg(4)O6 octahedra; and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-4°. In the sixth Mg site, Mg(6) is bonded to one O(5), one O(7), two equivalent O(2), and two equivalent O(3) atoms to form MgO6 octahedra that share corners with two equivalent Mg(5)O6 octahedra; corners with four Mg(6,6)O6 octahedra; edges with two equivalent Mg(2)O6 octahedra; edges with two equivalent Mg(3)O6 octahedra; edges with two equivalent Mg(4)O6 octahedra; edges with two equivalent Ti(1)O6 octahedra; and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-3°. In the seventh Mg site, Mg(5) is bonded to one O(4), one O(6), two equivalent O(1), and two equivalent O(3) atoms to form MgO6 octahedra that share corners with two equivalent Mg(6)O6 octahedra; corners with four Mg(5,5)O6 octahedra; edges with two equivalent Ca(1)O6 octahedra; edges with two equivalent Mg(1)O6 octahedra; edges with two equivalent Mg(3)O6 octahedra; edges with two equivalent Mg(4)O6 octahedra; and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-4°. In the eighth Mg site, Mg(6) is bonded to one O(5), one O(7), two equivalent O(2), and two equivalent O(3) atoms to form MgO6 octahedra that share corners with two equivalent Mg(5)O6 octahedra; corners with four Mg(6,6)O6 octahedra; edges with two equivalent Mg(2)O6 octahedra; edges with two equivalent Mg(3)O6 octahedra; edges with two equivalent Mg(4)O6 octahedra; edges with two equivalent Ti(1)O6 octahedra; and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-3°. In the ninth Mg site, Mg(7) is bonded to one O(1), one O(2), one O(8), one O(9), and two equivalent O(3) atoms to form MgO6 octahedra that share corners with six equivalent Mg(7)O6 octahedra,  an edgeedge with one Ca(1)O6 octahedra,  an edgeedge with one Mg(1)O6 octahedra,  an edgeedge with one Mg(2)O6 octahedra,  an edgeedge with one Ti(1)O6 octahedra, edges with two equivalent Mg(3)O6 octahedra, edges with two equivalent Mg(4)O6 octahedra, edges with two equivalent Mg(5)O6 octahedra, and edges with two equivalent Mg(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-4°. Ti(1) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(8) atoms to form TiO6 octahedra that share corners with two equivalent Ca(1)O6 octahedra; corners with two equivalent Mg(2)O6 octahedra; corners with two equivalent Ti(1)O6 octahedra; edges with four equivalent Mg(3)O6 octahedra; edges with four Mg(6,6)O6 octahedra; and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedra are not tilted. There are nine inequivalent O sites. In the first O site, O(1) is bonded to one Ca(1), one Mg(1), two equivalent Mg(5), and two equivalent Mg(7) atoms to form OCaMg5 octahedra that share corners with two equivalent O(2)Mg5Ti octahedra, corners with four equivalent O(1)CaMg5 octahedra, edges with two equivalent O(4)Ca2Mg4 octahedra, edges with two equivalent O(8)CaMg4Ti octahedra, edges with two equivalent O(6)Mg6 octahedra, edges with two equivalent O(9)Mg6 octahedra, and edges with four equivalent O(3)Mg6 octahedra. The corner-sharing octahedral tilt angles range from 0-4°. In the second O site, O(2) is bonded to one Mg(2), two equivalent Mg(6), two equivalent Mg(7), and one Ti(1) atom to form OMg5Ti octahedra that share corners with two equivalent O(1)CaMg5 octahedra, corners with four equivalent O(2)Mg5Ti octahedra, edges with two equivalent O(8)CaMg4Ti octahedra, edges with two equivalent O(5)Mg4Ti2 octahedra, edges with two equivalent O(7)Mg6 octahedra, edges with two equivalent O(9)Mg6 octahedra, and edges with four equivalent O(3)Mg6 octahedra. The corner-sharing octahedral tilt angles range from 0-3°. In the third O site, O(3) is bonded to one Mg(3), one Mg(4), one Mg(5), one Mg(6), and two equivalent Mg(7) atoms to form OMg6 octahedra that share corners with six equivalent O(3)Mg6 octahedra,  an edgeedge with one O(4)Ca2Mg4 octahedra,  an edgeedge with one O(5)Mg4Ti2 octahedra,  an edgeedge with one O(6)Mg6 octahedra,  an edgeedge with one O(7)Mg6 octahedra, edges with two equivalent O(8)CaMg4Ti octahedra, edges with two equivalent O(1)CaMg5 octahedra, edges with two equivalent O(2)Mg5Ti octahedra, and edges with two equivalent O(9)Mg6 octahedra. The corner-sharing octahedral tilt angles range from 0-3°. In the fourth O site, O(4) is bonded to two equivalent Ca(1); two equivalent Mg(3); and two Mg(5,5) atoms to form OCa2Mg4 octahedra that share corners with two equivalent O(4)Ca2Mg4 octahedra, corners with two equivalent O(5)Mg4Ti2 octahedra, corners with two equivalent O(6)Mg6 octahedra, edges with four equivalent O(8)CaMg4Ti octahedra, edges with four equivalent O(1)CaMg5 octahedra, and edges with four equivalent O(3)Mg6 octahedra. The corner-sharing octahedra are not tilted. In the fifth O site, O(5) is bonded to two equivalent Mg(3); two Mg(6,6); and two equivalent Ti(1) atoms to form OMg4Ti2 octahedra that share corners with two equivalent O(4)Ca2Mg4 octahedra, corners with two equivalent O(5)Mg4Ti2 octahedra, corners with two equivalent O(7)Mg6 octahedra, edges with four equivalent O(8)CaMg4Ti octahedra, edges with four equivalent O(2)Mg5Ti octahedra, and edges with four equivalent O(3)Mg6 octahedra. The corner-sharing octahedra are not tilted. In the sixth O site, O(6) is bonded to two equivalent Mg(1); two equivalent Mg(4); and two Mg(5,5) atoms to form OMg6 octahedra that share corners with two equivalent O(4)Ca2Mg4 octahedra, corners with two equivalent O(6)Mg6 octahedra, corners with two equivalent O(7)Mg6 octahedra, edges with four equivalent O(1)CaMg5 octahedra, edges with four equivalent O(3)Mg6 octahedra, and edges with four equivalent O(9)Mg6 octahedra. The corner-sharing octahedra are not tilted. In the seventh O site, O(7) is bonded to two equivalent Mg(2); two equivalent Mg(4); and two Mg(6,6) atoms to form OMg6 octahedra that share corners with two equivalent O(5)Mg4Ti2 octahedra, corners with two equivalent O(6)Mg6 octahedra, corners with two equivalent O(7)Mg6 octahedra, edges with four equivalent O(2)Mg5Ti octahedra, edges with four equivalent O(3)Mg6 octahedra, and edges with four equivalent O(9)Mg6 octahedra. The corner-sharing octahedra are not tilted. In the eighth O site, O(8) is bonded to one Ca(1), two equivalent Mg(3), two equivalent Mg(7), and one Ti(1) atom to form OCaMg4Ti octahedra that share corners with two equivalent O(9)Mg6 octahedra, corners with four equivalent O(8)CaMg4Ti octahedra, edges with two equivalent O(4)Ca2Mg4 octahedra, edges with two equivalent O(1)CaMg5 octahedra, edges with two equivalent O(5)Mg4Ti2 octahedra, edges with two equivalent O(2)Mg5Ti octahedra, and edges with four equivalent O(3)Mg6 octahedra. The corner-sharing octahedral tilt angles range from 0-3°. In the ninth O site, O(9) is bonded to one Mg(1), one Mg(2), two equivalent Mg(4), and two equivalent Mg(7) atoms to form OMg6 octahedra that share corners with two equivalent O(8)CaMg4Ti octahedra, corners with four equivalent O(9)Mg6 octahedra, edges with two equivalent O(1)CaMg5 octahedra, edges with two equivalent O(2)Mg5Ti octahedra, edges with two equivalent O(6)Mg6 octahedra, edges with two equivalent O(7)Mg6 octahedra, and edges with four equivalent O(3)Mg6 octahedra. The corner-sharing octahedral tilt angles range from 0-1°.
CaMg14TiO16 is alpha Po-derived structured and crystallizes in the orthorhombic Pmmm space group. Ca(1) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(8) atoms to form CaO6 octahedra that share corners with two equivalent Ca(1)O6 octahedra; corners with two equivalent Mg(1)O6 octahedra; corners with two equivalent Ti(1)O6 octahedra; edges with four equivalent Mg(3)O6 octahedra; edges with four Mg(5,5)O6 octahedra; and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedra are not tilted. Both Ca(1)-O(1) bond lengths are 2.28 Å. Both Ca(1)-O(4) bond lengths are 2.16 Å. Both Ca(1)-O(8) bond lengths are 2.23 Å. There are nine inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to two equivalent O(1), two equivalent O(6), and two equivalent O(9) atoms to form MgO6 octahedra that share corners with two equivalent Ca(1)O6 octahedra; corners with two equivalent Mg(1)O6 octahedra; corners with two equivalent Mg(2)O6 octahedra; edges with four equivalent Mg(4)O6 octahedra; edges with four Mg(5,5)O6 octahedra; and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedra are not tilted. Both Mg(1)-O(1) bond lengths are 2.04 Å. Both Mg(1)-O(6) bond lengths are 2.16 Å. Both Mg(1)-O(9) bond lengths are 2.18 Å. In the second Mg site, Mg(2) is bonded to two equivalent O(2), two equivalent O(7), and two equivalent O(9) atoms to form MgO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra; corners with two equivalent Mg(2)O6 octahedra; corners with two equivalent Ti(1)O6 octahedra; edges with four equivalent Mg(4)O6 octahedra; edges with four Mg(6,6)O6 octahedra; and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedra are not tilted. Both Mg(2)-O(2) bond lengths are 2.10 Å. Both Mg(2)-O(7) bond lengths are 2.16 Å. Both Mg(2)-O(9) bond lengths are 2.15 Å. In the third Mg site, Mg(3) is bonded to one O(4), one O(5), two equivalent O(3), and two equivalent O(8) atoms to form MgO6 octahedra that share corners with two equivalent Mg(4)O6 octahedra; corners with four equivalent Mg(3)O6 octahedra; edges with two equivalent Ca(1)O6 octahedra; edges with two Mg(5,5)O6 octahedra; edges with two Mg(6,6)O6 octahedra; edges with two equivalent Ti(1)O6 octahedra; and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-3°. The Mg(3)-O(4) bond length is 2.18 Å. The Mg(3)-O(5) bond length is 2.15 Å. Both Mg(3)-O(3) bond lengths are 2.15 Å. Both Mg(3)-O(8) bond lengths are 2.16 Å. In the fourth Mg site, Mg(4) is bonded to one O(6), one O(7), two equivalent O(3), and two equivalent O(9) atoms to form a mixture of corner and edge-sharing MgO6 octahedra. The corner-sharing octahedral tilt angles range from 0-1°. The Mg(4)-O(6) bond length is 2.17 Å. The Mg(4)-O(7) bond length is 2.16 Å. Both Mg(4)-O(3) bond lengths are 2.17 Å. Both Mg(4)-O(9) bond lengths are 2.16 Å. In the fifth Mg site, Mg(5) is bonded to one O(4), one O(6), two equivalent O(1), and two equivalent O(3) atoms to form MgO6 octahedra that share corners with two equivalent Mg(6)O6 octahedra; corners with four Mg(5,5)O6 octahedra; edges with two equivalent Ca(1)O6 octahedra; edges with two equivalent Mg(1)O6 octahedra; edges with two equivalent Mg(3)O6 octahedra; edges with two equivalent Mg(4)O6 octahedra; and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-4°. The Mg(5)-O(4) bond length is 2.21 Å. The Mg(5)-O(6) bond length is 2.11 Å. Both Mg(5)-O(1) bond lengths are 2.16 Å. Both Mg(5)-O(3) bond lengths are 2.17 Å. In the sixth Mg site, Mg(6) is bonded to one O(5), one O(7), two equivalent O(2), and two equivalent O(3) atoms to form MgO6 octahedra that share corners with two equivalent Mg(5)O6 octahedra; corners with four Mg(6,6)O6 octahedra; edges with two equivalent Mg(2)O6 octahedra; edges with two equivalent Mg(3)O6 octahedra; edges with two equivalent Mg(4)O6 octahedra; edges with two equivalent Ti(1)O6 octahedra; and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-3°. The Mg(6)-O(5) bond length is 2.19 Å. The Mg(6)-O(7) bond length is 2.13 Å. Both Mg(6)-O(2) bond lengths are 2.16 Å. Both Mg(6)-O(3) bond lengths are 2.16 Å. In the seventh Mg site, Mg(5) is bonded to one O(4), one O(6), two equivalent O(1), and two equivalent O(3) atoms to form MgO6 octahedra that share corners with two equivalent Mg(6)O6 octahedra; corners with four Mg(5,5)O6 octahedra; edges with two equivalent Ca(1)O6 octahedra; edges with two equivalent Mg(1)O6 octahedra; edges with two equivalent Mg(3)O6 octahedra; edges with two equivalent Mg(4)O6 octahedra; and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-4°. The Mg(5)-O(4) bond length is 2.21 Å. The Mg(5)-O(6) bond length is 2.11 Å. Both Mg(5)-O(1) bond lengths are 2.16 Å. Both Mg(5)-O(3) bond lengths are 2.17 Å. In the eighth Mg site, Mg(6) is bonded to one O(5), one O(7), two equivalent O(2), and two equivalent O(3) atoms to form MgO6 octahedra that share corners with two equivalent Mg(5)O6 octahedra; corners with four Mg(6,6)O6 octahedra; edges with two equivalent Mg(2)O6 octahedra; edges with two equivalent Mg(3)O6 octahedra; edges with two equivalent Mg(4)O6 octahedra; edges with two equivalent Ti(1)O6 octahedra; and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-3°. The Mg(6)-O(5) bond length is 2.19 Å. The Mg(6)-O(7) bond length is 2.13 Å. Both Mg(6)-O(2) bond lengths are 2.16 Å. Both Mg(6)-O(3) bond lengths are 2.16 Å. In the ninth Mg site, Mg(7) is bonded to one O(1), one O(2), one O(8), one O(9), and two equivalent O(3) atoms to form MgO6 octahedra that share corners with six equivalent Mg(7)O6 octahedra,  an edgeedge with one Ca(1)O6 octahedra,  an edgeedge with one Mg(1)O6 octahedra,  an edgeedge with one Mg(2)O6 octahedra,  an edgeedge with one Ti(1)O6 octahedra, edges with two equivalent Mg(3)O6 octahedra, edges with two equivalent Mg(4)O6 octahedra, edges with two equivalent Mg(5)O6 octahedra, and edges with two equivalent Mg(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-4°. The Mg(7)-O(1) bond length is 2.18 Å. The Mg(7)-O(2) bond length is 2.14 Å. The Mg(7)-O(8) bond length is 2.20 Å. The Mg(7)-O(9) bond length is 2.12 Å. Both Mg(7)-O(3) bond lengths are 2.16 Å. Ti(1) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(8) atoms to form TiO6 octahedra that share corners with two equivalent Ca(1)O6 octahedra; corners with two equivalent Mg(2)O6 octahedra; corners with two equivalent Ti(1)O6 octahedra; edges with four equivalent Mg(3)O6 octahedra; edges with four Mg(6,6)O6 octahedra; and edges with four equivalent Mg(7)O6 octahedra. The corner-sharing octahedra are not tilted. Both Ti(1)-O(2) bond lengths are 2.22 Å. Both Ti(1)-O(5) bond lengths are 2.16 Å. Both Ti(1)-O(8) bond lengths are 2.09 Å. There are nine inequivalent O sites. In the first O site, O(1) is bonded to one Ca(1), one Mg(1), two equivalent Mg(5), and two equivalent Mg(7) atoms to form OCaMg5 octahedra that share corners with two equivalent O(2)Mg5Ti octahedra, corners with four equivalent O(1)CaMg5 octahedra, edges with two equivalent O(4)Ca2Mg4 octahedra, edges with two equivalent O(8)CaMg4Ti octahedra, edges with two equivalent O(6)Mg6 octahedra, edges with two equivalent O(9)Mg6 octahedra, and edges with four equivalent O(3)Mg6 octahedra. The corner-sharing octahedral tilt angles range from 0-4°. In the second O site, O(2) is bonded to one Mg(2), two equivalent Mg(6), two equivalent Mg(7), and one Ti(1) atom to form OMg5Ti octahedra that share corners with two equivalent O(1)CaMg5 octahedra, corners with four equivalent O(2)Mg5Ti octahedra, edges with two equivalent O(8)CaMg4Ti octahedra, edges with two equivalent O(5)Mg4Ti2 octahedra, edges with two equivalent O(7)Mg6 octahedra, edges with two equivalent O(9)Mg6 octahedra, and edges with four equivalent O(3)Mg6 octahedra. The corner-sharing octahedral tilt angles range from 0-3°. In the third O site, O(3) is bonded to one Mg(3), one Mg(4), one Mg(5), one Mg(6), and two equivalent Mg(7) atoms to form OMg6 octahedra that share corners with six equivalent O(3)Mg6 octahedra,  an edgeedge with one O(4)Ca2Mg4 octahedra,  an edgeedge with one O(5)Mg4Ti2 octahedra,  an edgeedge with one O(6)Mg6 octahedra,  an edgeedge with one O(7)Mg6 octahedra, edges with two equivalent O(8)CaMg4Ti octahedra, edges with two equivalent O(1)CaMg5 octahedra, edges with two equivalent O(2)Mg5Ti octahedra, and edges with two equivalent O(9)Mg6 octahedra. The corner-sharing octahedral tilt angles range from 0-3°. In the fourth O site, O(4) is bonded to two equivalent Ca(1); two equivalent Mg(3); and two Mg(5,5) atoms to form OCa2Mg4 octahedra that share corners with two equivalent O(4)Ca2Mg4 octahedra, corners with two equivalent O(5)Mg4Ti2 octahedra, corners with two equivalent O(6)Mg6 octahedra, edges with four equivalent O(8)CaMg4Ti octahedra, edges with four equivalent O(1)CaMg5 octahedra, and edges with four equivalent O(3)Mg6 octahedra. The corner-sharing octahedra are not tilted. In the fifth O site, O(5) is bonded to two equivalent Mg(3); two Mg(6,6); and two equivalent Ti(1) atoms to form OMg4Ti2 octahedra that share corners with two equivalent O(4)Ca2Mg4 octahedra, corners with two equivalent O(5)Mg4Ti2 octahedra, corners with two equivalent O(7)Mg6 octahedra, edges with four equivalent O(8)CaMg4Ti octahedra, edges with four equivalent O(2)Mg5Ti octahedra, and edges with four equivalent O(3)Mg6 octahedra. The corner-sharing octahedra are not tilted. In the sixth O site, O(6) is bonded to two equivalent Mg(1); two equivalent Mg(4); and two Mg(5,5) atoms to form OMg6 octahedra that share corners with two equivalent O(4)Ca2Mg4 octahedra, corners with two equivalent O(6)Mg6 octahedra, corners with two equivalent O(7)Mg6 octahedra, edges with four equivalent O(1)CaMg5 octahedra, edges with four equivalent O(3)Mg6 octahedra, and edges with four equivalent O(9)Mg6 octahedra. The corner-sharing octahedra are not tilted. In the seventh O site, O(7) is bonded to two equivalent Mg(2); two equivalent Mg(4); and two Mg(6,6) atoms to form OMg6 octahedra that share corners with two equivalent O(5)Mg4Ti2 octahedra, corners with two equivalent O(6)Mg6 octahedra, corners with two equivalent O(7)Mg6 octahedra, edges with four equivalent O(2)Mg5Ti octahedra, edges with four equivalent O(3)Mg6 octahedra, and edges with four equivalent O(9)Mg6 octahedra. The corner-sharing octahedra are not tilted. In the eighth O site, O(8) is bonded to one Ca(1), two equivalent Mg(3), two equivalent Mg(7), and one Ti(1) atom to form OCaMg4Ti octahedra that share corners with two equivalent O(9)Mg6 octahedra, corners with four equivalent O(8)CaMg4Ti octahedra, edges with two equivalent O(4)Ca2Mg4 octahedra, edges with two equivalent O(1)CaMg5 octahedra, edges with two equivalent O(5)Mg4Ti2 octahedra, edges with two equivalent O(2)Mg5Ti octahedra, and edges with four equivalent O(3)Mg6 octahedra. The corner-sharing octahedral tilt angles range from 0-3°. In the ninth O site, O(9) is bonded to one Mg(1), one Mg(2), two equivalent Mg(4), and two equivalent Mg(7) atoms to form OMg6 octahedra that share corners with two equivalent O(8)CaMg4Ti octahedra, corners with four equivalent O(9)Mg6 octahedra, edges with two equivalent O(1)CaMg5 octahedra, edges with two equivalent O(2)Mg5Ti octahedra, edges with two equivalent O(6)Mg6 octahedra, edges with two equivalent O(7)Mg6 octahedra, and edges with four equivalent O(3)Mg6 octahedra. The corner-sharing octahedral tilt angles range from 0-1°.