Fe10OF19 is Hydrophilite-derived structured and crystallizes in the triclinic P1 space group. There are ten inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one F(10), one F(14), one F(18), one F(3), one F(5), and one F(7) atom to form FeF6 octahedra that share corners with two equivalent Fe(10)F6 octahedra, corners with two equivalent Fe(6)F6 octahedra, corners with two equivalent Fe(9)F6 octahedra, corners with two equivalent Fe(7)OF5 octahedra,  an edgeedge with one Fe(4)F6 octahedra, and  an edgeedge with one Fe(3)OF5 octahedra. The corner-sharing octahedral tilt angles range from 49-54°. In the second Fe site, Fe(2) is bonded to one F(12), one F(13), one F(16), one F(4), one F(8), and one F(9) atom to form FeF6 octahedra that share corners with two equivalent Fe(10)F6 octahedra, corners with two equivalent Fe(9)F6 octahedra, corners with two equivalent Fe(7)OF5 octahedra, corners with two equivalent Fe(8)OF5 octahedra,  an edgeedge with one Fe(4)F6 octahedra, and  an edgeedge with one Fe(5)F6 octahedra. The corner-sharing octahedral tilt angles range from 48-54°. In the third Fe site, Fe(3) is bonded to one O(1), one F(10), one F(11), one F(17), one F(5), and one F(6) atom to form FeOF5 octahedra that share corners with two equivalent Fe(10)F6 octahedra, corners with two equivalent Fe(6)F6 octahedra, corners with two equivalent Fe(7)OF5 octahedra, corners with two equivalent Fe(8)OF5 octahedra,  an edgeedge with one Fe(1)F6 octahedra, and  an edgeedge with one Fe(5)F6 octahedra. The corner-sharing octahedral tilt angles range from 48-51°. In the fourth Fe site, Fe(4) is bonded to one F(1), one F(13), one F(14), one F(19), one F(7), and one F(8) atom to form FeF6 octahedra that share corners with two equivalent Fe(10)F6 octahedra, corners with two equivalent Fe(6)F6 octahedra, corners with two equivalent Fe(9)F6 octahedra, corners with two equivalent Fe(8)OF5 octahedra,  an edgeedge with one Fe(1)F6 octahedra, and  an edgeedge with one Fe(2)F6 octahedra. The corner-sharing octahedral tilt angles range from 49-52°. In the fifth Fe site, Fe(5) is bonded to one F(11), one F(12), one F(15), one F(2), one F(6), and one F(9) atom to form FeF6 octahedra that share corners with two equivalent Fe(6)F6 octahedra, corners with two equivalent Fe(9)F6 octahedra, corners with two equivalent Fe(7)OF5 octahedra, corners with two equivalent Fe(8)OF5 octahedra,  an edgeedge with one Fe(2)F6 octahedra, and  an edgeedge with one Fe(3)OF5 octahedra. The corner-sharing octahedral tilt angles range from 48-54°. In the sixth Fe site, Fe(6) is bonded to one F(1), one F(14), one F(15), one F(17), one F(3), and one F(6) atom to form FeF6 octahedra that share corners with two equivalent Fe(1)F6 octahedra, corners with two equivalent Fe(4)F6 octahedra, corners with two equivalent Fe(5)F6 octahedra, corners with two equivalent Fe(3)OF5 octahedra,  an edgeedge with one Fe(10)F6 octahedra, and  an edgeedge with one Fe(7)OF5 octahedra. The corner-sharing octahedral tilt angles range from 48-54°. In the seventh Fe site, Fe(7) is bonded to one O(1), one F(10), one F(15), one F(16), one F(3), and one F(9) atom to form FeOF5 octahedra that share corners with two equivalent Fe(1)F6 octahedra, corners with two equivalent Fe(2)F6 octahedra, corners with two equivalent Fe(5)F6 octahedra, corners with two equivalent Fe(3)OF5 octahedra,  an edgeedge with one Fe(6)F6 octahedra, and  an edgeedge with one Fe(8)OF5 octahedra. The corner-sharing octahedral tilt angles range from 48-54°. In the eighth Fe site, Fe(8) is bonded to one O(1), one F(11), one F(16), one F(19), one F(2), and one F(8) atom to form FeOF5 octahedra that share corners with two equivalent Fe(2)F6 octahedra, corners with two equivalent Fe(4)F6 octahedra, corners with two equivalent Fe(5)F6 octahedra, corners with two equivalent Fe(3)OF5 octahedra,  an edgeedge with one Fe(9)F6 octahedra, and  an edgeedge with one Fe(7)OF5 octahedra. The corner-sharing octahedral tilt angles range from 48-54°. In the ninth Fe site, Fe(9) is bonded to one F(12), one F(18), one F(19), one F(2), one F(4), and one F(7) atom to form FeF6 octahedra that share corners with two equivalent Fe(1)F6 octahedra, corners with two equivalent Fe(2)F6 octahedra, corners with two equivalent Fe(4)F6 octahedra, corners with two equivalent Fe(5)F6 octahedra,  an edgeedge with one Fe(10)F6 octahedra, and  an edgeedge with one Fe(8)OF5 octahedra. The corner-sharing octahedral tilt angles range from 50-52°. In the tenth Fe site, Fe(10) is bonded to one F(1), one F(13), one F(17), one F(18), one F(4), and one F(5) atom to form FeF6 octahedra that share corners with two equivalent Fe(1)F6 octahedra, corners with two equivalent Fe(2)F6 octahedra, corners with two equivalent Fe(4)F6 octahedra, corners with two equivalent Fe(3)OF5 octahedra,  an edgeedge with one Fe(6)F6 octahedra, and  an edgeedge with one Fe(9)F6 octahedra. The corner-sharing octahedral tilt angles range from 48-54°. O(1) is bonded in a distorted trigonal planar geometry to one Fe(3), one Fe(7), and one Fe(8) atom. There are nineteen inequivalent F sites. In the first F site, F(1) is bonded in a trigonal planar geometry to one Fe(10), one Fe(4), and one Fe(6) atom. In the second F site, F(2) is bonded in a trigonal planar geometry to one Fe(5), one Fe(8), and one Fe(9) atom. In the third F site, F(3) is bonded in a trigonal planar geometry to one Fe(1), one Fe(6), and one Fe(7) atom. In the fourth F site, F(4) is bonded in a trigonal planar geometry to one Fe(10), one Fe(2), and one Fe(9) atom. In the fifth F site, F(5) is bonded in a trigonal planar geometry to one Fe(1), one Fe(10), and one Fe(3) atom. In the sixth F site, F(6) is bonded in a trigonal planar geometry to one Fe(3), one Fe(5), and one Fe(6) atom. In the seventh F site, F(7) is bonded in a trigonal planar geometry to one Fe(1), one Fe(4), and one Fe(9) atom. In the eighth F site, F(8) is bonded in a trigonal planar geometry to one Fe(2), one Fe(4), and one Fe(8) atom. In the ninth F site, F(9) is bonded in a trigonal planar geometry to one Fe(2), one Fe(5), and one Fe(7) atom. In the tenth F site, F(10) is bonded in a trigonal planar geometry to one Fe(1), one Fe(3), and one Fe(7) atom. In the eleventh F site, F(11) is bonded in a trigonal planar geometry to one Fe(3), one Fe(5), and one Fe(8) atom. In the twelfth F site, F(12) is bonded in a trigonal planar geometry to one Fe(2), one Fe(5), and one Fe(9) atom. In the thirteenth F site, F(13) is bonded in a distorted trigonal planar geometry to one Fe(10), one Fe(2), and one Fe(4) atom. In the fourteenth F site, F(14) is bonded in a trigonal planar geometry to one Fe(1), one Fe(4), and one Fe(6) atom. In the fifteenth F site, F(15) is bonded in a trigonal planar geometry to one Fe(5), one Fe(6), and one Fe(7) atom. In the sixteenth F site, F(16) is bonded in a distorted trigonal planar geometry to one Fe(2), one Fe(7), and one Fe(8) atom. In the seventeenth F site, F(17) is bonded in a distorted trigonal planar geometry to one Fe(10), one Fe(3), and one Fe(6) atom. In the eighteenth F site, F(18) is bonded in a trigonal planar geometry to one Fe(1), one Fe(10), and one Fe(9) atom. In the nineteenth F site, F(19) is bonded in a trigonal planar geometry to one Fe(4), one Fe(8), and one Fe(9) atom.
Fe10OF19 is Hydrophilite-derived structured and crystallizes in the triclinic P1 space group. There are ten inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one F(10), one F(14), one F(18), one F(3), one F(5), and one F(7) atom to form FeF6 octahedra that share corners with two equivalent Fe(10)F6 octahedra, corners with two equivalent Fe(6)F6 octahedra, corners with two equivalent Fe(9)F6 octahedra, corners with two equivalent Fe(7)OF5 octahedra,  an edgeedge with one Fe(4)F6 octahedra, and  an edgeedge with one Fe(3)OF5 octahedra. The corner-sharing octahedral tilt angles range from 49-54°. The Fe(1)-F(10) bond length is 2.16 Å. The Fe(1)-F(14) bond length is 2.14 Å. The Fe(1)-F(18) bond length is 2.02 Å. The Fe(1)-F(3) bond length is 2.02 Å. The Fe(1)-F(5) bond length is 2.19 Å. The Fe(1)-F(7) bond length is 2.13 Å. In the second Fe site, Fe(2) is bonded to one F(12), one F(13), one F(16), one F(4), one F(8), and one F(9) atom to form FeF6 octahedra that share corners with two equivalent Fe(10)F6 octahedra, corners with two equivalent Fe(9)F6 octahedra, corners with two equivalent Fe(7)OF5 octahedra, corners with two equivalent Fe(8)OF5 octahedra,  an edgeedge with one Fe(4)F6 octahedra, and  an edgeedge with one Fe(5)F6 octahedra. The corner-sharing octahedral tilt angles range from 48-54°. The Fe(2)-F(12) bond length is 2.15 Å. The Fe(2)-F(13) bond length is 2.15 Å. The Fe(2)-F(16) bond length is 2.01 Å. The Fe(2)-F(4) bond length is 2.04 Å. The Fe(2)-F(8) bond length is 2.13 Å. The Fe(2)-F(9) bond length is 2.14 Å. In the third Fe site, Fe(3) is bonded to one O(1), one F(10), one F(11), one F(17), one F(5), and one F(6) atom to form FeOF5 octahedra that share corners with two equivalent Fe(10)F6 octahedra, corners with two equivalent Fe(6)F6 octahedra, corners with two equivalent Fe(7)OF5 octahedra, corners with two equivalent Fe(8)OF5 octahedra,  an edgeedge with one Fe(1)F6 octahedra, and  an edgeedge with one Fe(5)F6 octahedra. The corner-sharing octahedral tilt angles range from 48-51°. The Fe(3)-O(1) bond length is 1.81 Å. The Fe(3)-F(10) bond length is 2.06 Å. The Fe(3)-F(11) bond length is 2.06 Å. The Fe(3)-F(17) bond length is 2.10 Å. The Fe(3)-F(5) bond length is 2.09 Å. The Fe(3)-F(6) bond length is 2.09 Å. In the fourth Fe site, Fe(4) is bonded to one F(1), one F(13), one F(14), one F(19), one F(7), and one F(8) atom to form FeF6 octahedra that share corners with two equivalent Fe(10)F6 octahedra, corners with two equivalent Fe(6)F6 octahedra, corners with two equivalent Fe(9)F6 octahedra, corners with two equivalent Fe(8)OF5 octahedra,  an edgeedge with one Fe(1)F6 octahedra, and  an edgeedge with one Fe(2)F6 octahedra. The corner-sharing octahedral tilt angles range from 49-52°. The Fe(4)-F(1) bond length is 2.05 Å. The Fe(4)-F(13) bond length is 2.14 Å. The Fe(4)-F(14) bond length is 2.15 Å. The Fe(4)-F(19) bond length is 2.04 Å. The Fe(4)-F(7) bond length is 2.15 Å. The Fe(4)-F(8) bond length is 2.11 Å. In the fifth Fe site, Fe(5) is bonded to one F(11), one F(12), one F(15), one F(2), one F(6), and one F(9) atom to form FeF6 octahedra that share corners with two equivalent Fe(6)F6 octahedra, corners with two equivalent Fe(9)F6 octahedra, corners with two equivalent Fe(7)OF5 octahedra, corners with two equivalent Fe(8)OF5 octahedra,  an edgeedge with one Fe(2)F6 octahedra, and  an edgeedge with one Fe(3)OF5 octahedra. The corner-sharing octahedral tilt angles range from 48-54°. The Fe(5)-F(11) bond length is 2.16 Å. The Fe(5)-F(12) bond length is 2.13 Å. The Fe(5)-F(15) bond length is 2.03 Å. The Fe(5)-F(2) bond length is 2.03 Å. The Fe(5)-F(6) bond length is 2.19 Å. The Fe(5)-F(9) bond length is 2.11 Å. In the sixth Fe site, Fe(6) is bonded to one F(1), one F(14), one F(15), one F(17), one F(3), and one F(6) atom to form FeF6 octahedra that share corners with two equivalent Fe(1)F6 octahedra, corners with two equivalent Fe(4)F6 octahedra, corners with two equivalent Fe(5)F6 octahedra, corners with two equivalent Fe(3)OF5 octahedra,  an edgeedge with one Fe(10)F6 octahedra, and  an edgeedge with one Fe(7)OF5 octahedra. The corner-sharing octahedral tilt angles range from 48-54°. The Fe(6)-F(1) bond length is 2.13 Å. The Fe(6)-F(14) bond length is 2.04 Å. The Fe(6)-F(15) bond length is 2.12 Å. The Fe(6)-F(17) bond length is 2.17 Å. The Fe(6)-F(3) bond length is 2.14 Å. The Fe(6)-F(6) bond length is 2.08 Å. In the seventh Fe site, Fe(7) is bonded to one O(1), one F(10), one F(15), one F(16), one F(3), and one F(9) atom to form FeOF5 octahedra that share corners with two equivalent Fe(1)F6 octahedra, corners with two equivalent Fe(2)F6 octahedra, corners with two equivalent Fe(5)F6 octahedra, corners with two equivalent Fe(3)OF5 octahedra,  an edgeedge with one Fe(6)F6 octahedra, and  an edgeedge with one Fe(8)OF5 octahedra. The corner-sharing octahedral tilt angles range from 48-54°. The Fe(7)-O(1) bond length is 2.06 Å. The Fe(7)-F(10) bond length is 2.11 Å. The Fe(7)-F(15) bond length is 2.21 Å. The Fe(7)-F(16) bond length is 2.15 Å. The Fe(7)-F(3) bond length is 2.15 Å. The Fe(7)-F(9) bond length is 2.05 Å. In the eighth Fe site, Fe(8) is bonded to one O(1), one F(11), one F(16), one F(19), one F(2), and one F(8) atom to form FeOF5 octahedra that share corners with two equivalent Fe(2)F6 octahedra, corners with two equivalent Fe(4)F6 octahedra, corners with two equivalent Fe(5)F6 octahedra, corners with two equivalent Fe(3)OF5 octahedra,  an edgeedge with one Fe(9)F6 octahedra, and  an edgeedge with one Fe(7)OF5 octahedra. The corner-sharing octahedral tilt angles range from 48-54°. The Fe(8)-O(1) bond length is 2.07 Å. The Fe(8)-F(11) bond length is 2.11 Å. The Fe(8)-F(16) bond length is 2.15 Å. The Fe(8)-F(19) bond length is 2.20 Å. The Fe(8)-F(2) bond length is 2.14 Å. The Fe(8)-F(8) bond length is 2.05 Å. In the ninth Fe site, Fe(9) is bonded to one F(12), one F(18), one F(19), one F(2), one F(4), and one F(7) atom to form FeF6 octahedra that share corners with two equivalent Fe(1)F6 octahedra, corners with two equivalent Fe(2)F6 octahedra, corners with two equivalent Fe(4)F6 octahedra, corners with two equivalent Fe(5)F6 octahedra,  an edgeedge with one Fe(10)F6 octahedra, and  an edgeedge with one Fe(8)OF5 octahedra. The corner-sharing octahedral tilt angles range from 50-52°. The Fe(9)-F(12) bond length is 2.04 Å. The Fe(9)-F(18) bond length is 2.15 Å. The Fe(9)-F(19) bond length is 2.13 Å. The Fe(9)-F(2) bond length is 2.13 Å. The Fe(9)-F(4) bond length is 2.14 Å. The Fe(9)-F(7) bond length is 2.05 Å. In the tenth Fe site, Fe(10) is bonded to one F(1), one F(13), one F(17), one F(18), one F(4), and one F(5) atom to form FeF6 octahedra that share corners with two equivalent Fe(1)F6 octahedra, corners with two equivalent Fe(2)F6 octahedra, corners with two equivalent Fe(4)F6 octahedra, corners with two equivalent Fe(3)OF5 octahedra,  an edgeedge with one Fe(6)F6 octahedra, and  an edgeedge with one Fe(9)F6 octahedra. The corner-sharing octahedral tilt angles range from 48-54°. The Fe(10)-F(1) bond length is 2.13 Å. The Fe(10)-F(13) bond length is 2.03 Å. The Fe(10)-F(17) bond length is 2.17 Å. The Fe(10)-F(18) bond length is 2.13 Å. The Fe(10)-F(4) bond length is 2.14 Å. The Fe(10)-F(5) bond length is 2.08 Å. O(1) is bonded in a distorted trigonal planar geometry to one Fe(3), one Fe(7), and one Fe(8) atom. There are nineteen inequivalent F sites. In the first F site, F(1) is bonded in a trigonal planar geometry to one Fe(10), one Fe(4), and one Fe(6) atom. In the second F site, F(2) is bonded in a trigonal planar geometry to one Fe(5), one Fe(8), and one Fe(9) atom. In the third F site, F(3) is bonded in a trigonal planar geometry to one Fe(1), one Fe(6), and one Fe(7) atom. In the fourth F site, F(4) is bonded in a trigonal planar geometry to one Fe(10), one Fe(2), and one Fe(9) atom. In the fifth F site, F(5) is bonded in a trigonal planar geometry to one Fe(1), one Fe(10), and one Fe(3) atom. In the sixth F site, F(6) is bonded in a trigonal planar geometry to one Fe(3), one Fe(5), and one Fe(6) atom. In the seventh F site, F(7) is bonded in a trigonal planar geometry to one Fe(1), one Fe(4), and one Fe(9) atom. In the eighth F site, F(8) is bonded in a trigonal planar geometry to one Fe(2), one Fe(4), and one Fe(8) atom. In the ninth F site, F(9) is bonded in a trigonal planar geometry to one Fe(2), one Fe(5), and one Fe(7) atom. In the tenth F site, F(10) is bonded in a trigonal planar geometry to one Fe(1), one Fe(3), and one Fe(7) atom. In the eleventh F site, F(11) is bonded in a trigonal planar geometry to one Fe(3), one Fe(5), and one Fe(8) atom. In the twelfth F site, F(12) is bonded in a trigonal planar geometry to one Fe(2), one Fe(5), and one Fe(9) atom. In the thirteenth F site, F(13) is bonded in a distorted trigonal planar geometry to one Fe(10), one Fe(2), and one Fe(4) atom. In the fourteenth F site, F(14) is bonded in a trigonal planar geometry to one Fe(1), one Fe(4), and one Fe(6) atom. In the fifteenth F site, F(15) is bonded in a trigonal planar geometry to one Fe(5), one Fe(6), and one Fe(7) atom. In the sixteenth F site, F(16) is bonded in a distorted trigonal planar geometry to one Fe(2), one Fe(7), and one Fe(8) atom. In the seventeenth F site, F(17) is bonded in a distorted trigonal planar geometry to one Fe(10), one Fe(3), and one Fe(6) atom. In the eighteenth F site, F(18) is bonded in a trigonal planar geometry to one Fe(1), one Fe(10), and one Fe(9) atom. In the nineteenth F site, F(19) is bonded in a trigonal planar geometry to one Fe(4), one Fe(8), and one Fe(9) atom.