The structure described by MgFe11O18 is Ilmenite-like structured and crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(11), one O(17), one O(18), one O(2), one O(5), and one O(8) atom to form distorted MgO6 octahedra that share  a cornercorner with one Fe(5)O6 octahedra,  a cornercorner with one Fe(6)O6 octahedra,  a cornercorner with one Fe(9)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Fe(7)O6 octahedra, corners with two equivalent Fe(8)O6 octahedra,  an edgeedge with one Fe(11)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra, and  a faceface with one Fe(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-64°. There are eleven inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(1), one O(11), one O(13), one O(16), one O(2), and one O(3) atom to form distorted FeO6 octahedra that share  a cornercorner with one Fe(11)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra, corners with two equivalent Mg(1)O6 octahedra, corners with two equivalent Fe(10)O6 octahedra, corners with two equivalent Fe(4)O6 octahedra,  an edgeedge with one Fe(5)O6 octahedra,  an edgeedge with one Fe(6)O6 octahedra,  an edgeedge with one Fe(9)O6 octahedra, and  a faceface with one Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-61°. In the second Fe site, Fe(2) is bonded to one O(1), one O(11), one O(15), one O(16), one O(3), and one O(8) atom to form distorted FeO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(7)O6 octahedra,  a cornercorner with one Fe(8)O6 octahedra, corners with two equivalent Fe(5)O6 octahedra, corners with two equivalent Fe(6)O6 octahedra, corners with two equivalent Fe(9)O6 octahedra,  an edgeedge with one Mg(1)O6 octahedra,  an edgeedge with one Fe(10)O6 octahedra,  an edgeedge with one Fe(4)O6 octahedra, and  a faceface with one Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-62°. In the third Fe site, Fe(3) is bonded to one O(10), one O(2), one O(5), one O(6), one O(7), and one O(9) atom to form FeO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(7)O6 octahedra,  a cornercorner with one Fe(8)O6 octahedra, corners with two equivalent Fe(5)O6 octahedra, corners with two equivalent Fe(6)O6 octahedra, corners with two equivalent Fe(9)O6 octahedra,  an edgeedge with one Mg(1)O6 octahedra,  an edgeedge with one Fe(10)O6 octahedra,  an edgeedge with one Fe(4)O6 octahedra, and  a faceface with one Fe(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-61°. In the fourth Fe site, Fe(4) is bonded to one O(1), one O(14), one O(3), one O(4), one O(6), and one O(7) atom to form a mixture of corner, face, and edge-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles range from 48-61°. In the fifth Fe site, Fe(5) is bonded to one O(16), one O(17), one O(18), one O(2), one O(6), and one O(8) atom to form FeO6 octahedra that share  a cornercorner with one Mg(1)O6 octahedra,  a cornercorner with one Fe(10)O6 octahedra,  a cornercorner with one Fe(4)O6 octahedra, corners with two equivalent Fe(11)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(7)O6 octahedra,  an edgeedge with one Fe(8)O6 octahedra, and  a faceface with one Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-62°. In the sixth Fe site, Fe(6) is bonded to one O(10), one O(11), one O(13), one O(15), one O(4), and one O(9) atom to form distorted FeO6 octahedra that share  a cornercorner with one Mg(1)O6 octahedra,  a cornercorner with one Fe(10)O6 octahedra,  a cornercorner with one Fe(4)O6 octahedra, corners with two equivalent Fe(11)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(7)O6 octahedra,  an edgeedge with one Fe(8)O6 octahedra, and  a faceface with one Fe(10)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-64°. In the seventh Fe site, Fe(7) is bonded to one O(10), one O(14), one O(5), one O(6), one O(8), and one O(9) atom to form distorted FeO6 octahedra that share  a cornercorner with one Fe(11)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra, corners with two equivalent Mg(1)O6 octahedra, corners with two equivalent Fe(10)O6 octahedra, corners with two equivalent Fe(4)O6 octahedra,  an edgeedge with one Fe(5)O6 octahedra,  an edgeedge with one Fe(6)O6 octahedra,  an edgeedge with one Fe(9)O6 octahedra, and  a faceface with one Fe(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-61°. In the eighth Fe site, Fe(8) is bonded to one O(12), one O(15), one O(17), one O(18), one O(4), and one O(7) atom to form distorted FeO6 octahedra that share  a cornercorner with one Fe(11)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra, corners with two equivalent Mg(1)O6 octahedra, corners with two equivalent Fe(10)O6 octahedra, corners with two equivalent Fe(4)O6 octahedra,  an edgeedge with one Fe(5)O6 octahedra,  an edgeedge with one Fe(6)O6 octahedra,  an edgeedge with one Fe(9)O6 octahedra, and  a faceface with one Fe(11)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-62°. In the ninth Fe site, Fe(9) is bonded to one O(1), one O(12), one O(14), one O(3), one O(5), and one O(7) atom to form distorted FeO6 octahedra that share  a cornercorner with one Mg(1)O6 octahedra,  a cornercorner with one Fe(10)O6 octahedra,  a cornercorner with one Fe(4)O6 octahedra, corners with two equivalent Fe(11)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(7)O6 octahedra,  an edgeedge with one Fe(8)O6 octahedra, and  a faceface with one Fe(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-63°. In the tenth Fe site, Fe(10) is bonded to one O(10), one O(12), one O(13), one O(15), one O(16), and one O(9) atom to form a mixture of distorted corner, face, and edge-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles range from 48-61°. In the eleventh Fe site, Fe(11) is bonded to one O(12), one O(13), one O(14), one O(17), one O(18), and one O(4) atom to form FeO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(7)O6 octahedra,  a cornercorner with one Fe(8)O6 octahedra, corners with two equivalent Fe(5)O6 octahedra, corners with two equivalent Fe(6)O6 octahedra, corners with two equivalent Fe(9)O6 octahedra,  an edgeedge with one Mg(1)O6 octahedra,  an edgeedge with one Fe(10)O6 octahedra,  an edgeedge with one Fe(4)O6 octahedra, and  a faceface with one Fe(8)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-61°. There are eighteen inequivalent O sites. In the first O site, O(1) is bonded to one Fe(1), one Fe(2), one Fe(4), and one Fe(9) atom to form distorted OFe4 trigonal pyramids that share  a cornercorner with one O(12)Fe4 trigonal pyramid,  a cornercorner with one O(13)Fe4 trigonal pyramid,  a cornercorner with one O(15)Fe4 trigonal pyramid,  a cornercorner with one O(4)Fe4 trigonal pyramid,  a cornercorner with one O(6)Fe4 trigonal pyramid,  a cornercorner with one O(2)MgFe3 trigonal pyramid,  a cornercorner with one O(5)MgFe3 trigonal pyramid,  a cornercorner with one O(8)MgFe3 trigonal pyramid, corners with two equivalent O(14)Fe4 trigonal pyramids, corners with two equivalent O(7)Fe4 trigonal pyramids,  an edgeedge with one O(16)Fe4 trigonal pyramid, and edges with two equivalent O(3)Fe4 trigonal pyramids. In the second O site, O(2) is bonded to one Mg(1), one Fe(1), one Fe(3), and one Fe(5) atom to form distorted OMgFe3 trigonal pyramids that share  a cornercorner with one O(1)Fe4 trigonal pyramid,  a cornercorner with one O(10)Fe4 trigonal pyramid,  a cornercorner with one O(13)Fe4 trigonal pyramid,  a cornercorner with one O(3)Fe4 trigonal pyramid,  a cornercorner with one O(7)Fe4 trigonal pyramid,  a cornercorner with one O(9)Fe4 trigonal pyramid, corners with two equivalent O(6)Fe4 trigonal pyramids,  an edgeedge with one O(16)Fe4 trigonal pyramid,  an edgeedge with one O(18)MgFe3 trigonal pyramid,  an edgeedge with one O(5)MgFe3 trigonal pyramid, and  an edgeedge with one O(8)MgFe3 trigonal pyramid. In the third O site, O(3) is bonded to one Fe(1), one Fe(2), one Fe(4), and one Fe(9) atom to form distorted OFe4 trigonal pyramids that share  a cornercorner with one O(12)Fe4 trigonal pyramid,  a cornercorner with one O(13)Fe4 trigonal pyramid,  a cornercorner with one O(15)Fe4 trigonal pyramid,  a cornercorner with one O(4)Fe4 trigonal pyramid,  a cornercorner with one O(6)Fe4 trigonal pyramid,  a cornercorner with one O(2)MgFe3 trigonal pyramid,  a cornercorner with one O(5)MgFe3 trigonal pyramid,  a cornercorner with one O(8)MgFe3 trigonal pyramid, corners with two equivalent O(16)Fe4 trigonal pyramids,  an edgeedge with one O(14)Fe4 trigonal pyramid,  an edgeedge with one O(7)Fe4 trigonal pyramid, and edges with two equivalent O(1)Fe4 trigonal pyramids. In the fourth O site, O(4) is bonded to one Fe(11), one Fe(4), one Fe(6), and one Fe(8) atom to form distorted OFe4 trigonal pyramids that share  a cornercorner with one O(1)Fe4 trigonal pyramid,  a cornercorner with one O(10)Fe4 trigonal pyramid,  a cornercorner with one O(3)Fe4 trigonal pyramid,  a cornercorner with one O(6)Fe4 trigonal pyramid,  a cornercorner with one O(9)Fe4 trigonal pyramid, corners with two equivalent O(13)Fe4 trigonal pyramids, corners with two equivalent O(7)Fe4 trigonal pyramids, corners with two equivalent O(18)MgFe3 trigonal pyramids,  an edgeedge with one O(12)Fe4 trigonal pyramid,  an edgeedge with one O(14)Fe4 trigonal pyramid, and  an edgeedge with one O(15)Fe4 trigonal pyramid. In the fifth O site, O(5) is bonded to one Mg(1), one Fe(3), one Fe(7), and one Fe(9) atom to form distorted OMgFe3 trigonal pyramids that share  a cornercorner with one O(1)Fe4 trigonal pyramid,  a cornercorner with one O(12)Fe4 trigonal pyramid,  a cornercorner with one O(3)Fe4 trigonal pyramid,  a cornercorner with one O(18)MgFe3 trigonal pyramid, corners with two equivalent O(7)Fe4 trigonal pyramids, corners with two equivalent O(9)Fe4 trigonal pyramids, corners with two equivalent O(8)MgFe3 trigonal pyramids,  an edgeedge with one O(10)Fe4 trigonal pyramid,  an edgeedge with one O(14)Fe4 trigonal pyramid,  an edgeedge with one O(6)Fe4 trigonal pyramid, and  an edgeedge with one O(2)MgFe3 trigonal pyramid. In the sixth O site, O(6) is bonded to one Fe(3), one Fe(4), one Fe(5), and one Fe(7) atom to form distorted OFe4 trigonal pyramids that share  a cornercorner with one O(1)Fe4 trigonal pyramid,  a cornercorner with one O(16)Fe4 trigonal pyramid,  a cornercorner with one O(3)Fe4 trigonal pyramid,  a cornercorner with one O(4)Fe4 trigonal pyramid,  a cornercorner with one O(18)MgFe3 trigonal pyramid, corners with two equivalent O(14)Fe4 trigonal pyramids, corners with two equivalent O(9)Fe4 trigonal pyramids, corners with two equivalent O(2)MgFe3 trigonal pyramids,  an edgeedge with one O(10)Fe4 trigonal pyramid,  an edgeedge with one O(7)Fe4 trigonal pyramid,  an edgeedge with one O(5)MgFe3 trigonal pyramid, and  an edgeedge with one O(8)MgFe3 trigonal pyramid. In the seventh O site, O(7) is bonded to one Fe(3), one Fe(4), one Fe(8), and one Fe(9) atom to form distorted OFe4 trigonal pyramids that share  a cornercorner with one O(10)Fe4 trigonal pyramid,  a cornercorner with one O(15)Fe4 trigonal pyramid,  a cornercorner with one O(9)Fe4 trigonal pyramid,  a cornercorner with one O(18)MgFe3 trigonal pyramid,  a cornercorner with one O(2)MgFe3 trigonal pyramid, corners with two equivalent O(1)Fe4 trigonal pyramids, corners with two equivalent O(4)Fe4 trigonal pyramids, corners with two equivalent O(5)MgFe3 trigonal pyramids,  an edgeedge with one O(12)Fe4 trigonal pyramid,  an edgeedge with one O(14)Fe4 trigonal pyramid,  an edgeedge with one O(3)Fe4 trigonal pyramid, and  an edgeedge with one O(6)Fe4 trigonal pyramid. In the eighth O site, O(8) is bonded to one Mg(1), one Fe(2), one Fe(5), and one Fe(7) atom to form distorted OMgFe3 trigonal pyramids that share  a cornercorner with one O(1)Fe4 trigonal pyramid,  a cornercorner with one O(10)Fe4 trigonal pyramid,  a cornercorner with one O(14)Fe4 trigonal pyramid,  a cornercorner with one O(15)Fe4 trigonal pyramid,  a cornercorner with one O(3)Fe4 trigonal pyramid,  a cornercorner with one O(9)Fe4 trigonal pyramid, corners with two equivalent O(16)Fe4 trigonal pyramids, corners with two equivalent O(5)MgFe3 trigonal pyramids,  an edgeedge with one O(6)Fe4 trigonal pyramid,  an edgeedge with one O(18)MgFe3 trigonal pyramid, and  an edgeedge with one O(2)MgFe3 trigonal pyramid. In the ninth O site, O(9) is bonded to one Fe(10), one Fe(3), one Fe(6), and one Fe(7) atom to form distorted OFe4 trigonal pyramids that share  a cornercorner with one O(12)Fe4 trigonal pyramid,  a cornercorner with one O(14)Fe4 trigonal pyramid,  a cornercorner with one O(16)Fe4 trigonal pyramid,  a cornercorner with one O(4)Fe4 trigonal pyramid,  a cornercorner with one O(7)Fe4 trigonal pyramid,  a cornercorner with one O(2)MgFe3 trigonal pyramid,  a cornercorner with one O(8)MgFe3 trigonal pyramid, corners with two equivalent O(6)Fe4 trigonal pyramids, corners with two equivalent O(5)MgFe3 trigonal pyramids,  an edgeedge with one O(13)Fe4 trigonal pyramid,  an edgeedge with one O(15)Fe4 trigonal pyramid, and edges with two equivalent O(10)Fe4 trigonal pyramids. In the tenth O site, O(10) is bonded to one Fe(10), one Fe(3), one Fe(6), and one Fe(7) atom to form distorted OFe4 trigonal pyramids that share  a cornercorner with one O(12)Fe4 trigonal pyramid,  a cornercorner with one O(14)Fe4 trigonal pyramid,  a cornercorner with one O(16)Fe4 trigonal pyramid,  a cornercorner with one O(4)Fe4 trigonal pyramid,  a cornercorner with one O(7)Fe4 trigonal pyramid,  a cornercorner with one O(2)MgFe3 trigonal pyramid,  a cornercorner with one O(8)MgFe3 trigonal pyramid, corners with two equivalent O(13)Fe4 trigonal pyramids, corners with two equivalent O(15)Fe4 trigonal pyramids,  an edgeedge with one O(6)Fe4 trigonal pyramid,  an edgeedge with one O(5)MgFe3 trigonal pyramid, and edges with two equivalent O(9)Fe4 trigonal pyramids. In the eleventh O site, O(11) is bonded in a distorted see-saw-like geometry to one Mg(1), one Fe(1), one Fe(2), and one Fe(6) atom. In the twelfth O site, O(12) is bonded to one Fe(10), one Fe(11), one Fe(8), and one Fe(9) atom to form distorted OFe4 trigonal pyramids that share  a cornercorner with one O(1)Fe4 trigonal pyramid,  a cornercorner with one O(10)Fe4 trigonal pyramid,  a cornercorner with one O(16)Fe4 trigonal pyramid,  a cornercorner with one O(3)Fe4 trigonal pyramid,  a cornercorner with one O(9)Fe4 trigonal pyramid,  a cornercorner with one O(5)MgFe3 trigonal pyramid, corners with two equivalent O(14)Fe4 trigonal pyramids, corners with two equivalent O(15)Fe4 trigonal pyramids, corners with two equivalent O(18)MgFe3 trigonal pyramids,  an edgeedge with one O(13)Fe4 trigonal pyramid,  an edgeedge with one O(4)Fe4 trigonal pyramid, and  an edgeedge with one O(7)Fe4 trigonal pyramid. In the thirteenth O site, O(13) is bonded to one Fe(1), one Fe(10), one Fe(11), and one Fe(6) atom to form distorted OFe4 trigonal pyramids that share  a cornercorner with one O(1)Fe4 trigonal pyramid,  a cornercorner with one O(14)Fe4 trigonal pyramid,  a cornercorner with one O(3)Fe4 trigonal pyramid,  a cornercorner with one O(18)MgFe3 trigonal pyramid,  a cornercorner with one O(2)MgFe3 trigonal pyramid, corners with two equivalent O(10)Fe4 trigonal pyramids, corners with two equivalent O(16)Fe4 trigonal pyramids, corners with two equivalent O(4)Fe4 trigonal pyramids,  an edgeedge with one O(12)Fe4 trigonal pyramid,  an edgeedge with one O(15)Fe4 trigonal pyramid, and  an edgeedge with one O(9)Fe4 trigonal pyramid. In the fourteenth O site, O(14) is bonded to one Fe(11), one Fe(4), one Fe(7), and one Fe(9) atom to form distorted OFe4 trigonal pyramids that share  a cornercorner with one O(10)Fe4 trigonal pyramid,  a cornercorner with one O(13)Fe4 trigonal pyramid,  a cornercorner with one O(9)Fe4 trigonal pyramid,  a cornercorner with one O(18)MgFe3 trigonal pyramid,  a cornercorner with one O(8)MgFe3 trigonal pyramid, corners with two equivalent O(1)Fe4 trigonal pyramids, corners with two equivalent O(12)Fe4 trigonal pyramids, corners with two equivalent O(6)Fe4 trigonal pyramids,  an edgeedge with one O(3)Fe4 trigonal pyramid,  an edgeedge with one O(4)Fe4 trigonal pyramid,  an edgeedge with one O(7)Fe4 trigonal pyramid, and  an edgeedge with one O(5)MgFe3 trigonal pyramid. In the fifteenth O site, O(15) is bonded to one Fe(10), one Fe(2), one Fe(6), and one Fe(8) atom to form distorted OFe4 trigonal pyramids that share  a cornercorner with one O(1)Fe4 trigonal pyramid,  a cornercorner with one O(3)Fe4 trigonal pyramid,  a cornercorner with one O(7)Fe4 trigonal pyramid,  a cornercorner with one O(18)MgFe3 trigonal pyramid,  a cornercorner with one O(8)MgFe3 trigonal pyramid, corners with two equivalent O(10)Fe4 trigonal pyramids, corners with two equivalent O(12)Fe4 trigonal pyramids,  an edgeedge with one O(13)Fe4 trigonal pyramid,  an edgeedge with one O(16)Fe4 trigonal pyramid,  an edgeedge with one O(4)Fe4 trigonal pyramid, and  an edgeedge with one O(9)Fe4 trigonal pyramid. In the sixteenth O site, O(16) is bonded to one Fe(1), one Fe(10), one Fe(2), and one Fe(5) atom to form distorted OFe4 trigonal pyramids that share  a cornercorner with one O(10)Fe4 trigonal pyramid,  a cornercorner with one O(12)Fe4 trigonal pyramid,  a cornercorner with one O(6)Fe4 trigonal pyramid,  a cornercorner with one O(9)Fe4 trigonal pyramid,  a cornercorner with one O(18)MgFe3 trigonal pyramid, corners with two equivalent O(13)Fe4 trigonal pyramids, corners with two equivalent O(3)Fe4 trigonal pyramids, corners with two equivalent O(8)MgFe3 trigonal pyramids,  an edgeedge with one O(1)Fe4 trigonal pyramid,  an edgeedge with one O(15)Fe4 trigonal pyramid, and  an edgeedge with one O(2)MgFe3 trigonal pyramid. In the seventeenth O site, O(17) is bonded in a distorted see-saw-like geometry to one Mg(1), one Fe(11), one Fe(5), and one Fe(8) atom. In the eighteenth O site, O(18) is bonded to one Mg(1), one Fe(11), one Fe(5), and one Fe(8) atom to form distorted OMgFe3 trigonal pyramids that share  a cornercorner with one O(13)Fe4 trigonal pyramid,  a cornercorner with one O(14)Fe4 trigonal pyramid,  a cornercorner with one O(15)Fe4 trigonal pyramid,  a cornercorner with one O(16)Fe4 trigonal pyramid,  a cornercorner with one O(6)Fe4 trigonal pyramid,  a cornercorner with one O(7)Fe4 trigonal pyramid,  a cornercorner with one O(5)MgFe3 trigonal pyramid, corners with two equivalent O(12)Fe4 trigonal pyramids, corners with two equivalent O(4)Fe4 trigonal pyramids,  an edgeedge with one O(2)MgFe3 trigonal pyramid, and  an edgeedge with one O(8)MgFe3 trigonal pyramid. is represented by the CIF file [CIF]
data_MgFe11O18
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.497
_cell_length_b   7.534
_cell_length_c   8.887
_cell_angle_alpha   113.238
_cell_angle_beta   105.540
_cell_angle_gamma   95.317
_symmetry_Int_Tables_number   1
_cell_volume   317.549
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Mg  Mg0  1  0.714  0.143  0.000  1.0
  Fe  Fe1  1  0.705  0.648  0.002  1.0
  Fe  Fe2  1  0.295  0.856  1.000  1.0
  Fe  Fe3  1  0.627  0.186  0.669  1.0
  Fe  Fe4  1  0.037  0.480  0.667  1.0
  Fe  Fe5  1  0.301  0.349  0.001  1.0
  Fe  Fe6  1  0.958  0.020  0.331  1.0
  Fe  Fe7  1  0.038  0.978  0.667  1.0
  Fe  Fe8  1  0.378  0.315  0.333  1.0
  Fe  Fe9  1  0.626  0.690  0.667  1.0
  Fe  Fe10  1  0.373  0.813  0.333  1.0
  Fe  Fe11  1  0.962  0.517  0.331  1.0
  O  O12  1  0.395  0.651  0.797  1.0
  O  O13  1  0.595  0.354  0.897  1.0
  O  O14  1  0.934  0.686  0.869  1.0
  O  O15  1  0.065  0.316  0.434  1.0
  O  O16  1  0.730  0.979  0.760  1.0
  O  O17  1  0.035  0.287  0.770  1.0
  O  O18  1  0.632  0.381  0.567  1.0
  O  O19  1  0.291  0.047  0.898  1.0
  O  O20  1  0.267  0.019  0.535  1.0
  O  O21  1  0.731  0.984  0.463  1.0
  O  O22  1  0.699  0.946  0.103  1.0
  O  O23  1  0.369  0.622  0.437  1.0
  O  O24  1  0.966  0.714  0.233  1.0
  O  O25  1  0.934  0.682  0.564  1.0
  O  O26  1  0.266  0.018  0.232  1.0
  O  O27  1  0.395  0.645  0.100  1.0
  O  O28  1  0.079  0.321  0.135  1.0
  O  O29  1  0.604  0.352  0.204  1.0
[/CIF]
.
The structure described by MgFe11O18 is Ilmenite-like structured and crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(11), one O(17), one O(18), one O(2), one O(5), and one O(8) atom to form distorted MgO6 octahedra that share  a cornercorner with one Fe(5)O6 octahedra,  a cornercorner with one Fe(6)O6 octahedra,  a cornercorner with one Fe(9)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Fe(7)O6 octahedra, corners with two equivalent Fe(8)O6 octahedra,  an edgeedge with one Fe(11)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra, and  a faceface with one Fe(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-64°. There are eleven inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(1), one O(11), one O(13), one O(16), one O(2), and one O(3) atom to form distorted FeO6 octahedra that share  a cornercorner with one Fe(11)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra, corners with two equivalent Mg(1)O6 octahedra, corners with two equivalent Fe(10)O6 octahedra, corners with two equivalent Fe(4)O6 octahedra,  an edgeedge with one Fe(5)O6 octahedra,  an edgeedge with one Fe(6)O6 octahedra,  an edgeedge with one Fe(9)O6 octahedra, and  a faceface with one Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-61°. In the second Fe site, Fe(2) is bonded to one O(1), one O(11), one O(15), one O(16), one O(3), and one O(8) atom to form distorted FeO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(7)O6 octahedra,  a cornercorner with one Fe(8)O6 octahedra, corners with two equivalent Fe(5)O6 octahedra, corners with two equivalent Fe(6)O6 octahedra, corners with two equivalent Fe(9)O6 octahedra,  an edgeedge with one Mg(1)O6 octahedra,  an edgeedge with one Fe(10)O6 octahedra,  an edgeedge with one Fe(4)O6 octahedra, and  a faceface with one Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-62°. In the third Fe site, Fe(3) is bonded to one O(10), one O(2), one O(5), one O(6), one O(7), and one O(9) atom to form FeO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(7)O6 octahedra,  a cornercorner with one Fe(8)O6 octahedra, corners with two equivalent Fe(5)O6 octahedra, corners with two equivalent Fe(6)O6 octahedra, corners with two equivalent Fe(9)O6 octahedra,  an edgeedge with one Mg(1)O6 octahedra,  an edgeedge with one Fe(10)O6 octahedra,  an edgeedge with one Fe(4)O6 octahedra, and  a faceface with one Fe(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-61°. In the fourth Fe site, Fe(4) is bonded to one O(1), one O(14), one O(3), one O(4), one O(6), and one O(7) atom to form a mixture of corner, face, and edge-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles range from 48-61°. In the fifth Fe site, Fe(5) is bonded to one O(16), one O(17), one O(18), one O(2), one O(6), and one O(8) atom to form FeO6 octahedra that share  a cornercorner with one Mg(1)O6 octahedra,  a cornercorner with one Fe(10)O6 octahedra,  a cornercorner with one Fe(4)O6 octahedra, corners with two equivalent Fe(11)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(7)O6 octahedra,  an edgeedge with one Fe(8)O6 octahedra, and  a faceface with one Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-62°. In the sixth Fe site, Fe(6) is bonded to one O(10), one O(11), one O(13), one O(15), one O(4), and one O(9) atom to form distorted FeO6 octahedra that share  a cornercorner with one Mg(1)O6 octahedra,  a cornercorner with one Fe(10)O6 octahedra,  a cornercorner with one Fe(4)O6 octahedra, corners with two equivalent Fe(11)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(7)O6 octahedra,  an edgeedge with one Fe(8)O6 octahedra, and  a faceface with one Fe(10)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-64°. In the seventh Fe site, Fe(7) is bonded to one O(10), one O(14), one O(5), one O(6), one O(8), and one O(9) atom to form distorted FeO6 octahedra that share  a cornercorner with one Fe(11)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra, corners with two equivalent Mg(1)O6 octahedra, corners with two equivalent Fe(10)O6 octahedra, corners with two equivalent Fe(4)O6 octahedra,  an edgeedge with one Fe(5)O6 octahedra,  an edgeedge with one Fe(6)O6 octahedra,  an edgeedge with one Fe(9)O6 octahedra, and  a faceface with one Fe(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-61°. In the eighth Fe site, Fe(8) is bonded to one O(12), one O(15), one O(17), one O(18), one O(4), and one O(7) atom to form distorted FeO6 octahedra that share  a cornercorner with one Fe(11)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra, corners with two equivalent Mg(1)O6 octahedra, corners with two equivalent Fe(10)O6 octahedra, corners with two equivalent Fe(4)O6 octahedra,  an edgeedge with one Fe(5)O6 octahedra,  an edgeedge with one Fe(6)O6 octahedra,  an edgeedge with one Fe(9)O6 octahedra, and  a faceface with one Fe(11)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-62°. In the ninth Fe site, Fe(9) is bonded to one O(1), one O(12), one O(14), one O(3), one O(5), and one O(7) atom to form distorted FeO6 octahedra that share  a cornercorner with one Mg(1)O6 octahedra,  a cornercorner with one Fe(10)O6 octahedra,  a cornercorner with one Fe(4)O6 octahedra, corners with two equivalent Fe(11)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(7)O6 octahedra,  an edgeedge with one Fe(8)O6 octahedra, and  a faceface with one Fe(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-63°. In the tenth Fe site, Fe(10) is bonded to one O(10), one O(12), one O(13), one O(15), one O(16), and one O(9) atom to form a mixture of distorted corner, face, and edge-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles range from 48-61°. In the eleventh Fe site, Fe(11) is bonded to one O(12), one O(13), one O(14), one O(17), one O(18), and one O(4) atom to form FeO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(7)O6 octahedra,  a cornercorner with one Fe(8)O6 octahedra, corners with two equivalent Fe(5)O6 octahedra, corners with two equivalent Fe(6)O6 octahedra, corners with two equivalent Fe(9)O6 octahedra,  an edgeedge with one Mg(1)O6 octahedra,  an edgeedge with one Fe(10)O6 octahedra,  an edgeedge with one Fe(4)O6 octahedra, and  a faceface with one Fe(8)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-61°. There are eighteen inequivalent O sites. In the first O site, O(1) is bonded to one Fe(1), one Fe(2), one Fe(4), and one Fe(9) atom to form distorted OFe4 trigonal pyramids that share  a cornercorner with one O(12)Fe4 trigonal pyramid,  a cornercorner with one O(13)Fe4 trigonal pyramid,  a cornercorner with one O(15)Fe4 trigonal pyramid,  a cornercorner with one O(4)Fe4 trigonal pyramid,  a cornercorner with one O(6)Fe4 trigonal pyramid,  a cornercorner with one O(2)MgFe3 trigonal pyramid,  a cornercorner with one O(5)MgFe3 trigonal pyramid,  a cornercorner with one O(8)MgFe3 trigonal pyramid, corners with two equivalent O(14)Fe4 trigonal pyramids, corners with two equivalent O(7)Fe4 trigonal pyramids,  an edgeedge with one O(16)Fe4 trigonal pyramid, and edges with two equivalent O(3)Fe4 trigonal pyramids. In the second O site, O(2) is bonded to one Mg(1), one Fe(1), one Fe(3), and one Fe(5) atom to form distorted OMgFe3 trigonal pyramids that share  a cornercorner with one O(1)Fe4 trigonal pyramid,  a cornercorner with one O(10)Fe4 trigonal pyramid,  a cornercorner with one O(13)Fe4 trigonal pyramid,  a cornercorner with one O(3)Fe4 trigonal pyramid,  a cornercorner with one O(7)Fe4 trigonal pyramid,  a cornercorner with one O(9)Fe4 trigonal pyramid, corners with two equivalent O(6)Fe4 trigonal pyramids,  an edgeedge with one O(16)Fe4 trigonal pyramid,  an edgeedge with one O(18)MgFe3 trigonal pyramid,  an edgeedge with one O(5)MgFe3 trigonal pyramid, and  an edgeedge with one O(8)MgFe3 trigonal pyramid. In the third O site, O(3) is bonded to one Fe(1), one Fe(2), one Fe(4), and one Fe(9) atom to form distorted OFe4 trigonal pyramids that share  a cornercorner with one O(12)Fe4 trigonal pyramid,  a cornercorner with one O(13)Fe4 trigonal pyramid,  a cornercorner with one O(15)Fe4 trigonal pyramid,  a cornercorner with one O(4)Fe4 trigonal pyramid,  a cornercorner with one O(6)Fe4 trigonal pyramid,  a cornercorner with one O(2)MgFe3 trigonal pyramid,  a cornercorner with one O(5)MgFe3 trigonal pyramid,  a cornercorner with one O(8)MgFe3 trigonal pyramid, corners with two equivalent O(16)Fe4 trigonal pyramids,  an edgeedge with one O(14)Fe4 trigonal pyramid,  an edgeedge with one O(7)Fe4 trigonal pyramid, and edges with two equivalent O(1)Fe4 trigonal pyramids. In the fourth O site, O(4) is bonded to one Fe(11), one Fe(4), one Fe(6), and one Fe(8) atom to form distorted OFe4 trigonal pyramids that share  a cornercorner with one O(1)Fe4 trigonal pyramid,  a cornercorner with one O(10)Fe4 trigonal pyramid,  a cornercorner with one O(3)Fe4 trigonal pyramid,  a cornercorner with one O(6)Fe4 trigonal pyramid,  a cornercorner with one O(9)Fe4 trigonal pyramid, corners with two equivalent O(13)Fe4 trigonal pyramids, corners with two equivalent O(7)Fe4 trigonal pyramids, corners with two equivalent O(18)MgFe3 trigonal pyramids,  an edgeedge with one O(12)Fe4 trigonal pyramid,  an edgeedge with one O(14)Fe4 trigonal pyramid, and  an edgeedge with one O(15)Fe4 trigonal pyramid. In the fifth O site, O(5) is bonded to one Mg(1), one Fe(3), one Fe(7), and one Fe(9) atom to form distorted OMgFe3 trigonal pyramids that share  a cornercorner with one O(1)Fe4 trigonal pyramid,  a cornercorner with one O(12)Fe4 trigonal pyramid,  a cornercorner with one O(3)Fe4 trigonal pyramid,  a cornercorner with one O(18)MgFe3 trigonal pyramid, corners with two equivalent O(7)Fe4 trigonal pyramids, corners with two equivalent O(9)Fe4 trigonal pyramids, corners with two equivalent O(8)MgFe3 trigonal pyramids,  an edgeedge with one O(10)Fe4 trigonal pyramid,  an edgeedge with one O(14)Fe4 trigonal pyramid,  an edgeedge with one O(6)Fe4 trigonal pyramid, and  an edgeedge with one O(2)MgFe3 trigonal pyramid. In the sixth O site, O(6) is bonded to one Fe(3), one Fe(4), one Fe(5), and one Fe(7) atom to form distorted OFe4 trigonal pyramids that share  a cornercorner with one O(1)Fe4 trigonal pyramid,  a cornercorner with one O(16)Fe4 trigonal pyramid,  a cornercorner with one O(3)Fe4 trigonal pyramid,  a cornercorner with one O(4)Fe4 trigonal pyramid,  a cornercorner with one O(18)MgFe3 trigonal pyramid, corners with two equivalent O(14)Fe4 trigonal pyramids, corners with two equivalent O(9)Fe4 trigonal pyramids, corners with two equivalent O(2)MgFe3 trigonal pyramids,  an edgeedge with one O(10)Fe4 trigonal pyramid,  an edgeedge with one O(7)Fe4 trigonal pyramid,  an edgeedge with one O(5)MgFe3 trigonal pyramid, and  an edgeedge with one O(8)MgFe3 trigonal pyramid. In the seventh O site, O(7) is bonded to one Fe(3), one Fe(4), one Fe(8), and one Fe(9) atom to form distorted OFe4 trigonal pyramids that share  a cornercorner with one O(10)Fe4 trigonal pyramid,  a cornercorner with one O(15)Fe4 trigonal pyramid,  a cornercorner with one O(9)Fe4 trigonal pyramid,  a cornercorner with one O(18)MgFe3 trigonal pyramid,  a cornercorner with one O(2)MgFe3 trigonal pyramid, corners with two equivalent O(1)Fe4 trigonal pyramids, corners with two equivalent O(4)Fe4 trigonal pyramids, corners with two equivalent O(5)MgFe3 trigonal pyramids,  an edgeedge with one O(12)Fe4 trigonal pyramid,  an edgeedge with one O(14)Fe4 trigonal pyramid,  an edgeedge with one O(3)Fe4 trigonal pyramid, and  an edgeedge with one O(6)Fe4 trigonal pyramid. In the eighth O site, O(8) is bonded to one Mg(1), one Fe(2), one Fe(5), and one Fe(7) atom to form distorted OMgFe3 trigonal pyramids that share  a cornercorner with one O(1)Fe4 trigonal pyramid,  a cornercorner with one O(10)Fe4 trigonal pyramid,  a cornercorner with one O(14)Fe4 trigonal pyramid,  a cornercorner with one O(15)Fe4 trigonal pyramid,  a cornercorner with one O(3)Fe4 trigonal pyramid,  a cornercorner with one O(9)Fe4 trigonal pyramid, corners with two equivalent O(16)Fe4 trigonal pyramids, corners with two equivalent O(5)MgFe3 trigonal pyramids,  an edgeedge with one O(6)Fe4 trigonal pyramid,  an edgeedge with one O(18)MgFe3 trigonal pyramid, and  an edgeedge with one O(2)MgFe3 trigonal pyramid. In the ninth O site, O(9) is bonded to one Fe(10), one Fe(3), one Fe(6), and one Fe(7) atom to form distorted OFe4 trigonal pyramids that share  a cornercorner with one O(12)Fe4 trigonal pyramid,  a cornercorner with one O(14)Fe4 trigonal pyramid,  a cornercorner with one O(16)Fe4 trigonal pyramid,  a cornercorner with one O(4)Fe4 trigonal pyramid,  a cornercorner with one O(7)Fe4 trigonal pyramid,  a cornercorner with one O(2)MgFe3 trigonal pyramid,  a cornercorner with one O(8)MgFe3 trigonal pyramid, corners with two equivalent O(6)Fe4 trigonal pyramids, corners with two equivalent O(5)MgFe3 trigonal pyramids,  an edgeedge with one O(13)Fe4 trigonal pyramid,  an edgeedge with one O(15)Fe4 trigonal pyramid, and edges with two equivalent O(10)Fe4 trigonal pyramids. In the tenth O site, O(10) is bonded to one Fe(10), one Fe(3), one Fe(6), and one Fe(7) atom to form distorted OFe4 trigonal pyramids that share  a cornercorner with one O(12)Fe4 trigonal pyramid,  a cornercorner with one O(14)Fe4 trigonal pyramid,  a cornercorner with one O(16)Fe4 trigonal pyramid,  a cornercorner with one O(4)Fe4 trigonal pyramid,  a cornercorner with one O(7)Fe4 trigonal pyramid,  a cornercorner with one O(2)MgFe3 trigonal pyramid,  a cornercorner with one O(8)MgFe3 trigonal pyramid, corners with two equivalent O(13)Fe4 trigonal pyramids, corners with two equivalent O(15)Fe4 trigonal pyramids,  an edgeedge with one O(6)Fe4 trigonal pyramid,  an edgeedge with one O(5)MgFe3 trigonal pyramid, and edges with two equivalent O(9)Fe4 trigonal pyramids. In the eleventh O site, O(11) is bonded in a distorted see-saw-like geometry to one Mg(1), one Fe(1), one Fe(2), and one Fe(6) atom. In the twelfth O site, O(12) is bonded to one Fe(10), one Fe(11), one Fe(8), and one Fe(9) atom to form distorted OFe4 trigonal pyramids that share  a cornercorner with one O(1)Fe4 trigonal pyramid,  a cornercorner with one O(10)Fe4 trigonal pyramid,  a cornercorner with one O(16)Fe4 trigonal pyramid,  a cornercorner with one O(3)Fe4 trigonal pyramid,  a cornercorner with one O(9)Fe4 trigonal pyramid,  a cornercorner with one O(5)MgFe3 trigonal pyramid, corners with two equivalent O(14)Fe4 trigonal pyramids, corners with two equivalent O(15)Fe4 trigonal pyramids, corners with two equivalent O(18)MgFe3 trigonal pyramids,  an edgeedge with one O(13)Fe4 trigonal pyramid,  an edgeedge with one O(4)Fe4 trigonal pyramid, and  an edgeedge with one O(7)Fe4 trigonal pyramid. In the thirteenth O site, O(13) is bonded to one Fe(1), one Fe(10), one Fe(11), and one Fe(6) atom to form distorted OFe4 trigonal pyramids that share  a cornercorner with one O(1)Fe4 trigonal pyramid,  a cornercorner with one O(14)Fe4 trigonal pyramid,  a cornercorner with one O(3)Fe4 trigonal pyramid,  a cornercorner with one O(18)MgFe3 trigonal pyramid,  a cornercorner with one O(2)MgFe3 trigonal pyramid, corners with two equivalent O(10)Fe4 trigonal pyramids, corners with two equivalent O(16)Fe4 trigonal pyramids, corners with two equivalent O(4)Fe4 trigonal pyramids,  an edgeedge with one O(12)Fe4 trigonal pyramid,  an edgeedge with one O(15)Fe4 trigonal pyramid, and  an edgeedge with one O(9)Fe4 trigonal pyramid. In the fourteenth O site, O(14) is bonded to one Fe(11), one Fe(4), one Fe(7), and one Fe(9) atom to form distorted OFe4 trigonal pyramids that share  a cornercorner with one O(10)Fe4 trigonal pyramid,  a cornercorner with one O(13)Fe4 trigonal pyramid,  a cornercorner with one O(9)Fe4 trigonal pyramid,  a cornercorner with one O(18)MgFe3 trigonal pyramid,  a cornercorner with one O(8)MgFe3 trigonal pyramid, corners with two equivalent O(1)Fe4 trigonal pyramids, corners with two equivalent O(12)Fe4 trigonal pyramids, corners with two equivalent O(6)Fe4 trigonal pyramids,  an edgeedge with one O(3)Fe4 trigonal pyramid,  an edgeedge with one O(4)Fe4 trigonal pyramid,  an edgeedge with one O(7)Fe4 trigonal pyramid, and  an edgeedge with one O(5)MgFe3 trigonal pyramid. In the fifteenth O site, O(15) is bonded to one Fe(10), one Fe(2), one Fe(6), and one Fe(8) atom to form distorted OFe4 trigonal pyramids that share  a cornercorner with one O(1)Fe4 trigonal pyramid,  a cornercorner with one O(3)Fe4 trigonal pyramid,  a cornercorner with one O(7)Fe4 trigonal pyramid,  a cornercorner with one O(18)MgFe3 trigonal pyramid,  a cornercorner with one O(8)MgFe3 trigonal pyramid, corners with two equivalent O(10)Fe4 trigonal pyramids, corners with two equivalent O(12)Fe4 trigonal pyramids,  an edgeedge with one O(13)Fe4 trigonal pyramid,  an edgeedge with one O(16)Fe4 trigonal pyramid,  an edgeedge with one O(4)Fe4 trigonal pyramid, and  an edgeedge with one O(9)Fe4 trigonal pyramid. In the sixteenth O site, O(16) is bonded to one Fe(1), one Fe(10), one Fe(2), and one Fe(5) atom to form distorted OFe4 trigonal pyramids that share  a cornercorner with one O(10)Fe4 trigonal pyramid,  a cornercorner with one O(12)Fe4 trigonal pyramid,  a cornercorner with one O(6)Fe4 trigonal pyramid,  a cornercorner with one O(9)Fe4 trigonal pyramid,  a cornercorner with one O(18)MgFe3 trigonal pyramid, corners with two equivalent O(13)Fe4 trigonal pyramids, corners with two equivalent O(3)Fe4 trigonal pyramids, corners with two equivalent O(8)MgFe3 trigonal pyramids,  an edgeedge with one O(1)Fe4 trigonal pyramid,  an edgeedge with one O(15)Fe4 trigonal pyramid, and  an edgeedge with one O(2)MgFe3 trigonal pyramid. In the seventeenth O site, O(17) is bonded in a distorted see-saw-like geometry to one Mg(1), one Fe(11), one Fe(5), and one Fe(8) atom. In the eighteenth O site, O(18) is bonded to one Mg(1), one Fe(11), one Fe(5), and one Fe(8) atom to form distorted OMgFe3 trigonal pyramids that share  a cornercorner with one O(13)Fe4 trigonal pyramid,  a cornercorner with one O(14)Fe4 trigonal pyramid,  a cornercorner with one O(15)Fe4 trigonal pyramid,  a cornercorner with one O(16)Fe4 trigonal pyramid,  a cornercorner with one O(6)Fe4 trigonal pyramid,  a cornercorner with one O(7)Fe4 trigonal pyramid,  a cornercorner with one O(5)MgFe3 trigonal pyramid, corners with two equivalent O(12)Fe4 trigonal pyramids, corners with two equivalent O(4)Fe4 trigonal pyramids,  an edgeedge with one O(2)MgFe3 trigonal pyramid, and  an edgeedge with one O(8)MgFe3 trigonal pyramid. is represented by the CIF file [CIF]
data_MgFe11O18
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.497
_cell_length_b   7.534
_cell_length_c   8.887
_cell_angle_alpha   113.238
_cell_angle_beta   105.540
_cell_angle_gamma   95.317
_symmetry_Int_Tables_number   1
_cell_volume   317.549
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Mg  Mg0  1  0.714  0.143  0.000  1.0
  Fe  Fe1  1  0.705  0.648  0.002  1.0
  Fe  Fe2  1  0.295  0.856  1.000  1.0
  Fe  Fe3  1  0.627  0.186  0.669  1.0
  Fe  Fe4  1  0.037  0.480  0.667  1.0
  Fe  Fe5  1  0.301  0.349  0.001  1.0
  Fe  Fe6  1  0.958  0.020  0.331  1.0
  Fe  Fe7  1  0.038  0.978  0.667  1.0
  Fe  Fe8  1  0.378  0.315  0.333  1.0
  Fe  Fe9  1  0.626  0.690  0.667  1.0
  Fe  Fe10  1  0.373  0.813  0.333  1.0
  Fe  Fe11  1  0.962  0.517  0.331  1.0
  O  O12  1  0.395  0.651  0.797  1.0
  O  O13  1  0.595  0.354  0.897  1.0
  O  O14  1  0.934  0.686  0.869  1.0
  O  O15  1  0.065  0.316  0.434  1.0
  O  O16  1  0.730  0.979  0.760  1.0
  O  O17  1  0.035  0.287  0.770  1.0
  O  O18  1  0.632  0.381  0.567  1.0
  O  O19  1  0.291  0.047  0.898  1.0
  O  O20  1  0.267  0.019  0.535  1.0
  O  O21  1  0.731  0.984  0.463  1.0
  O  O22  1  0.699  0.946  0.103  1.0
  O  O23  1  0.369  0.622  0.437  1.0
  O  O24  1  0.966  0.714  0.233  1.0
  O  O25  1  0.934  0.682  0.564  1.0
  O  O26  1  0.266  0.018  0.232  1.0
  O  O27  1  0.395  0.645  0.100  1.0
  O  O28  1  0.079  0.321  0.135  1.0
  O  O29  1  0.604  0.352  0.204  1.0
[/CIF]
.