Sr6Ca2MnFe7O24 is (Cubic) Perovskite-derived structured and crystallizes in the orthorhombic Cmm2 space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to one O(6), one O(9), two equivalent O(1), two equivalent O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms to form SrO12 cuboctahedra that share corners with four equivalent Sr(1)O12 cuboctahedra, corners with eight equivalent Sr(3)O12 cuboctahedra, faces with two equivalent Ca(1)O12 cuboctahedra, faces with four equivalent Sr(2)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Fe(2)O6 octahedra,  a faceface with one Fe(4)O6 octahedra,  a faceface with one Fe(5)O6 octahedra, faces with two equivalent Fe(1)O6 octahedra, and faces with two equivalent Fe(3)O6 octahedra. In the second Sr site, Sr(2) is bonded to one O(6), one O(9), two equivalent O(1), two equivalent O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms to form SrO12 cuboctahedra that share corners with four equivalent Sr(2)O12 cuboctahedra, corners with eight equivalent Ca(1)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, faces with four equivalent Sr(1)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Fe(2)O6 octahedra,  a faceface with one Fe(4)O6 octahedra,  a faceface with one Fe(5)O6 octahedra, faces with two equivalent Fe(1)O6 octahedra, and faces with two equivalent Fe(3)O6 octahedra. In the third Sr site, Sr(3) is bonded to one O(10), one O(8), two equivalent O(1), two equivalent O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(7) atoms to form SrO12 cuboctahedra that share corners with four equivalent Sr(3)O12 cuboctahedra, corners with eight equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with four equivalent Ca(1)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Fe(2)O6 octahedra,  a faceface with one Fe(4)O6 octahedra,  a faceface with one Fe(5)O6 octahedra, faces with two equivalent Fe(1)O6 octahedra, and faces with two equivalent Fe(3)O6 octahedra. Ca(1) is bonded to one O(10), one O(8), two equivalent O(1), two equivalent O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(7) atoms to form CaO12 cuboctahedra that share corners with four equivalent Ca(1)O12 cuboctahedra, corners with eight equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with four equivalent Sr(3)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Fe(2)O6 octahedra,  a faceface with one Fe(4)O6 octahedra,  a faceface with one Fe(5)O6 octahedra, faces with two equivalent Fe(1)O6 octahedra, and faces with two equivalent Fe(3)O6 octahedra. Mn(1) is bonded to one O(6), one O(8), and four equivalent O(4) atoms to form MnO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra, corners with four equivalent Fe(3)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. There are five inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(5), one O(7), two equivalent O(1), and two equivalent O(2) atoms to form FeO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra, corners with two equivalent Fe(4)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the second Fe site, Fe(2) is bonded to one O(6), one O(8), and four equivalent O(2) atoms to form FeO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with four equivalent Fe(1)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the third Fe site, Fe(3) is bonded to one O(5), one O(7), two equivalent O(3), and two equivalent O(4) atoms to form FeO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Fe(5)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the fourth Fe site, Fe(4) is bonded to one O(10), one O(9), and four equivalent O(1) atoms to form FeO6 octahedra that share corners with two equivalent Fe(5)O6 octahedra, corners with four equivalent Fe(1)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the fifth Fe site, Fe(5) is bonded to one O(10), one O(9), and four equivalent O(3) atoms to form FeO6 octahedra that share corners with two equivalent Fe(4)O6 octahedra, corners with four equivalent Fe(3)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. There are ten inequivalent O sites. In the first O site, O(1) is bonded to one Sr(1), one Sr(2), one Sr(3), one Ca(1), one Fe(1), and one Fe(4) atom to form distorted OSr3CaFe2 octahedra that share corners with two equivalent O(1)Sr3CaFe2 octahedra, corners with two equivalent O(5)Sr4Fe2 octahedra, corners with two equivalent O(6)Sr4MnFe octahedra, corners with four equivalent O(3)Sr3CaFe2 octahedra, edges with two equivalent O(2)Sr3CaFe2 octahedra, edges with two equivalent O(3)Sr3CaFe2 octahedra,  a faceface with one O(5)Sr4Fe2 octahedra,  a faceface with one O(9)Sr4Fe2 octahedra, faces with two equivalent O(1)Sr3CaFe2 octahedra, and faces with two equivalent O(2)Sr3CaFe2 octahedra. The corner-sharing octahedral tilt angles range from 1-61°. In the second O site, O(2) is bonded to one Sr(1), one Sr(2), one Sr(3), one Ca(1), one Fe(1), and one Fe(2) atom to form distorted OSr3CaFe2 octahedra that share corners with two equivalent O(2)Sr3CaFe2 octahedra, corners with two equivalent O(5)Sr4Fe2 octahedra, corners with two equivalent O(9)Sr4Fe2 octahedra, corners with eight equivalent O(3)Sr3CaFe2 octahedra, edges with two equivalent O(1)Sr3CaFe2 octahedra,  a faceface with one O(5)Sr4Fe2 octahedra,  a faceface with one O(6)Sr4MnFe octahedra, faces with two equivalent O(1)Sr3CaFe2 octahedra, and faces with two equivalent O(2)Sr3CaFe2 octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the third O site, O(3) is bonded to one Sr(1), one Sr(2), one Sr(3), one Ca(1), one Fe(3), and one Fe(5) atom to form distorted OSr3CaFe2 octahedra that share corners with two equivalent O(3)Sr3CaFe2 octahedra, corners with two equivalent O(5)Sr4Fe2 octahedra, corners with two equivalent O(6)Sr4MnFe octahedra, corners with four equivalent O(1)Sr3CaFe2 octahedra, corners with eight equivalent O(2)Sr3CaFe2 octahedra, edges with two equivalent O(1)Sr3CaFe2 octahedra,  a faceface with one O(5)Sr4Fe2 octahedra,  a faceface with one O(9)Sr4Fe2 octahedra, and faces with two equivalent O(3)Sr3CaFe2 octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the fourth O site, O(4) is bonded in a distorted linear geometry to one Sr(1), one Sr(2), one Sr(3), one Ca(1), one Mn(1), and one Fe(3) atom. In the fifth O site, O(5) is bonded to two equivalent Sr(1), two equivalent Sr(2), one Fe(1), and one Fe(3) atom to form distorted OSr4Fe2 octahedra that share corners with four equivalent O(1)Sr3CaFe2 octahedra, corners with four equivalent O(2)Sr3CaFe2 octahedra, corners with four equivalent O(3)Sr3CaFe2 octahedra, corners with four equivalent O(5)Sr4Fe2 octahedra, edges with two equivalent O(9)Sr4Fe2 octahedra, edges with two equivalent O(6)Sr4MnFe octahedra, faces with two equivalent O(1)Sr3CaFe2 octahedra, faces with two equivalent O(2)Sr3CaFe2 octahedra, and faces with two equivalent O(3)Sr3CaFe2 octahedra. The corner-sharing octahedral tilt angles range from 0-60°. In the sixth O site, O(6) is bonded to two equivalent Sr(1), two equivalent Sr(2), one Mn(1), and one Fe(2) atom to form distorted OSr4MnFe octahedra that share corners with four equivalent O(9)Sr4Fe2 octahedra, corners with eight equivalent O(1)Sr3CaFe2 octahedra, corners with eight equivalent O(3)Sr3CaFe2 octahedra, edges with four equivalent O(5)Sr4Fe2 octahedra, and faces with four equivalent O(2)Sr3CaFe2 octahedra. The corner-sharing octahedral tilt angles range from 0-60°. In the seventh O site, O(7) is bonded in a distorted linear geometry to two equivalent Sr(3), two equivalent Ca(1), one Fe(1), and one Fe(3) atom. In the eighth O site, O(8) is bonded in a distorted linear geometry to two equivalent Sr(3), two equivalent Ca(1), one Mn(1), and one Fe(2) atom. In the ninth O site, O(9) is bonded to two equivalent Sr(1), two equivalent Sr(2), one Fe(4), and one Fe(5) atom to form distorted OSr4Fe2 octahedra that share corners with four equivalent O(6)Sr4MnFe octahedra, corners with eight equivalent O(2)Sr3CaFe2 octahedra, edges with four equivalent O(5)Sr4Fe2 octahedra, faces with four equivalent O(1)Sr3CaFe2 octahedra, and faces with four equivalent O(3)Sr3CaFe2 octahedra. The corner-sharing octahedral tilt angles range from 0-60°. In the tenth O site, O(10) is bonded in a distorted linear geometry to two equivalent Sr(3), two equivalent Ca(1), one Fe(4), and one Fe(5) atom.
Sr6Ca2MnFe7O24 is (Cubic) Perovskite-derived structured and crystallizes in the orthorhombic Cmm2 space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to one O(6), one O(9), two equivalent O(1), two equivalent O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms to form SrO12 cuboctahedra that share corners with four equivalent Sr(1)O12 cuboctahedra, corners with eight equivalent Sr(3)O12 cuboctahedra, faces with two equivalent Ca(1)O12 cuboctahedra, faces with four equivalent Sr(2)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Fe(2)O6 octahedra,  a faceface with one Fe(4)O6 octahedra,  a faceface with one Fe(5)O6 octahedra, faces with two equivalent Fe(1)O6 octahedra, and faces with two equivalent Fe(3)O6 octahedra. The Sr(1)-O(6) bond length is 2.75 Å. The Sr(1)-O(9) bond length is 2.76 Å. Both Sr(1)-O(1) bond lengths are 2.76 Å. Both Sr(1)-O(2) bond lengths are 2.76 Å. Both Sr(1)-O(3) bond lengths are 2.76 Å. Both Sr(1)-O(4) bond lengths are 2.75 Å. Both Sr(1)-O(5) bond lengths are 2.76 Å. In the second Sr site, Sr(2) is bonded to one O(6), one O(9), two equivalent O(1), two equivalent O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms to form SrO12 cuboctahedra that share corners with four equivalent Sr(2)O12 cuboctahedra, corners with eight equivalent Ca(1)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, faces with four equivalent Sr(1)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Fe(2)O6 octahedra,  a faceface with one Fe(4)O6 octahedra,  a faceface with one Fe(5)O6 octahedra, faces with two equivalent Fe(1)O6 octahedra, and faces with two equivalent Fe(3)O6 octahedra. The Sr(2)-O(6) bond length is 2.75 Å. The Sr(2)-O(9) bond length is 2.76 Å. Both Sr(2)-O(1) bond lengths are 2.78 Å. Both Sr(2)-O(2) bond lengths are 2.78 Å. Both Sr(2)-O(3) bond lengths are 2.78 Å. Both Sr(2)-O(4) bond lengths are 2.77 Å. Both Sr(2)-O(5) bond lengths are 2.76 Å. In the third Sr site, Sr(3) is bonded to one O(10), one O(8), two equivalent O(1), two equivalent O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(7) atoms to form SrO12 cuboctahedra that share corners with four equivalent Sr(3)O12 cuboctahedra, corners with eight equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with four equivalent Ca(1)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Fe(2)O6 octahedra,  a faceface with one Fe(4)O6 octahedra,  a faceface with one Fe(5)O6 octahedra, faces with two equivalent Fe(1)O6 octahedra, and faces with two equivalent Fe(3)O6 octahedra. The Sr(3)-O(10) bond length is 2.76 Å. The Sr(3)-O(8) bond length is 2.75 Å. Both Sr(3)-O(1) bond lengths are 2.76 Å. Both Sr(3)-O(2) bond lengths are 2.75 Å. Both Sr(3)-O(3) bond lengths are 2.75 Å. Both Sr(3)-O(4) bond lengths are 2.75 Å. Both Sr(3)-O(7) bond lengths are 2.76 Å. Ca(1) is bonded to one O(10), one O(8), two equivalent O(1), two equivalent O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(7) atoms to form CaO12 cuboctahedra that share corners with four equivalent Ca(1)O12 cuboctahedra, corners with eight equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with four equivalent Sr(3)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Fe(2)O6 octahedra,  a faceface with one Fe(4)O6 octahedra,  a faceface with one Fe(5)O6 octahedra, faces with two equivalent Fe(1)O6 octahedra, and faces with two equivalent Fe(3)O6 octahedra. The Ca(1)-O(10) bond length is 2.76 Å. The Ca(1)-O(8) bond length is 2.75 Å. Both Ca(1)-O(1) bond lengths are 2.74 Å. Both Ca(1)-O(2) bond lengths are 2.74 Å. Both Ca(1)-O(3) bond lengths are 2.74 Å. Both Ca(1)-O(4) bond lengths are 2.73 Å. Both Ca(1)-O(7) bond lengths are 2.76 Å. Mn(1) is bonded to one O(6), one O(8), and four equivalent O(4) atoms to form MnO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra, corners with four equivalent Fe(3)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. The Mn(1)-O(6) bond length is 1.94 Å. The Mn(1)-O(8) bond length is 1.93 Å. All Mn(1)-O(4) bond lengths are 1.94 Å. There are five inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(5), one O(7), two equivalent O(1), and two equivalent O(2) atoms to form FeO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra, corners with two equivalent Fe(4)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. The Fe(1)-O(5) bond length is 1.95 Å. The Fe(1)-O(7) bond length is 1.93 Å. Both Fe(1)-O(1) bond lengths are 1.94 Å. Both Fe(1)-O(2) bond lengths are 1.94 Å. In the second Fe site, Fe(2) is bonded to one O(6), one O(8), and four equivalent O(2) atoms to form FeO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with four equivalent Fe(1)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. The Fe(2)-O(6) bond length is 1.97 Å. The Fe(2)-O(8) bond length is 1.95 Å. All Fe(2)-O(2) bond lengths are 1.96 Å. In the third Fe site, Fe(3) is bonded to one O(5), one O(7), two equivalent O(3), and two equivalent O(4) atoms to form FeO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Fe(5)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. The Fe(3)-O(5) bond length is 1.96 Å. The Fe(3)-O(7) bond length is 1.95 Å. Both Fe(3)-O(3) bond lengths are 1.96 Å. Both Fe(3)-O(4) bond lengths are 1.96 Å. In the fourth Fe site, Fe(4) is bonded to one O(10), one O(9), and four equivalent O(1) atoms to form FeO6 octahedra that share corners with two equivalent Fe(5)O6 octahedra, corners with four equivalent Fe(1)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. The Fe(4)-O(10) bond length is 1.95 Å. The Fe(4)-O(9) bond length is 1.96 Å. All Fe(4)-O(1) bond lengths are 1.95 Å. In the fifth Fe site, Fe(5) is bonded to one O(10), one O(9), and four equivalent O(3) atoms to form FeO6 octahedra that share corners with two equivalent Fe(4)O6 octahedra, corners with four equivalent Fe(3)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with two equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. The Fe(5)-O(10) bond length is 1.94 Å. The Fe(5)-O(9) bond length is 1.95 Å. All Fe(5)-O(3) bond lengths are 1.94 Å. There are ten inequivalent O sites. In the first O site, O(1) is bonded to one Sr(1), one Sr(2), one Sr(3), one Ca(1), one Fe(1), and one Fe(4) atom to form distorted OSr3CaFe2 octahedra that share corners with two equivalent O(1)Sr3CaFe2 octahedra, corners with two equivalent O(5)Sr4Fe2 octahedra, corners with two equivalent O(6)Sr4MnFe octahedra, corners with four equivalent O(3)Sr3CaFe2 octahedra, edges with two equivalent O(2)Sr3CaFe2 octahedra, edges with two equivalent O(3)Sr3CaFe2 octahedra,  a faceface with one O(5)Sr4Fe2 octahedra,  a faceface with one O(9)Sr4Fe2 octahedra, faces with two equivalent O(1)Sr3CaFe2 octahedra, and faces with two equivalent O(2)Sr3CaFe2 octahedra. The corner-sharing octahedral tilt angles range from 1-61°. In the second O site, O(2) is bonded to one Sr(1), one Sr(2), one Sr(3), one Ca(1), one Fe(1), and one Fe(2) atom to form distorted OSr3CaFe2 octahedra that share corners with two equivalent O(2)Sr3CaFe2 octahedra, corners with two equivalent O(5)Sr4Fe2 octahedra, corners with two equivalent O(9)Sr4Fe2 octahedra, corners with eight equivalent O(3)Sr3CaFe2 octahedra, edges with two equivalent O(1)Sr3CaFe2 octahedra,  a faceface with one O(5)Sr4Fe2 octahedra,  a faceface with one O(6)Sr4MnFe octahedra, faces with two equivalent O(1)Sr3CaFe2 octahedra, and faces with two equivalent O(2)Sr3CaFe2 octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the third O site, O(3) is bonded to one Sr(1), one Sr(2), one Sr(3), one Ca(1), one Fe(3), and one Fe(5) atom to form distorted OSr3CaFe2 octahedra that share corners with two equivalent O(3)Sr3CaFe2 octahedra, corners with two equivalent O(5)Sr4Fe2 octahedra, corners with two equivalent O(6)Sr4MnFe octahedra, corners with four equivalent O(1)Sr3CaFe2 octahedra, corners with eight equivalent O(2)Sr3CaFe2 octahedra, edges with two equivalent O(1)Sr3CaFe2 octahedra,  a faceface with one O(5)Sr4Fe2 octahedra,  a faceface with one O(9)Sr4Fe2 octahedra, and faces with two equivalent O(3)Sr3CaFe2 octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the fourth O site, O(4) is bonded in a distorted linear geometry to one Sr(1), one Sr(2), one Sr(3), one Ca(1), one Mn(1), and one Fe(3) atom. In the fifth O site, O(5) is bonded to two equivalent Sr(1), two equivalent Sr(2), one Fe(1), and one Fe(3) atom to form distorted OSr4Fe2 octahedra that share corners with four equivalent O(1)Sr3CaFe2 octahedra, corners with four equivalent O(2)Sr3CaFe2 octahedra, corners with four equivalent O(3)Sr3CaFe2 octahedra, corners with four equivalent O(5)Sr4Fe2 octahedra, edges with two equivalent O(9)Sr4Fe2 octahedra, edges with two equivalent O(6)Sr4MnFe octahedra, faces with two equivalent O(1)Sr3CaFe2 octahedra, faces with two equivalent O(2)Sr3CaFe2 octahedra, and faces with two equivalent O(3)Sr3CaFe2 octahedra. The corner-sharing octahedral tilt angles range from 0-60°. In the sixth O site, O(6) is bonded to two equivalent Sr(1), two equivalent Sr(2), one Mn(1), and one Fe(2) atom to form distorted OSr4MnFe octahedra that share corners with four equivalent O(9)Sr4Fe2 octahedra, corners with eight equivalent O(1)Sr3CaFe2 octahedra, corners with eight equivalent O(3)Sr3CaFe2 octahedra, edges with four equivalent O(5)Sr4Fe2 octahedra, and faces with four equivalent O(2)Sr3CaFe2 octahedra. The corner-sharing octahedral tilt angles range from 0-60°. In the seventh O site, O(7) is bonded in a distorted linear geometry to two equivalent Sr(3), two equivalent Ca(1), one Fe(1), and one Fe(3) atom. In the eighth O site, O(8) is bonded in a distorted linear geometry to two equivalent Sr(3), two equivalent Ca(1), one Mn(1), and one Fe(2) atom. In the ninth O site, O(9) is bonded to two equivalent Sr(1), two equivalent Sr(2), one Fe(4), and one Fe(5) atom to form distorted OSr4Fe2 octahedra that share corners with four equivalent O(6)Sr4MnFe octahedra, corners with eight equivalent O(2)Sr3CaFe2 octahedra, edges with four equivalent O(5)Sr4Fe2 octahedra, faces with four equivalent O(1)Sr3CaFe2 octahedra, and faces with four equivalent O(3)Sr3CaFe2 octahedra. The corner-sharing octahedral tilt angles range from 0-60°. In the tenth O site, O(10) is bonded in a distorted linear geometry to two equivalent Sr(3), two equivalent Ca(1), one Fe(4), and one Fe(5) atom.