The crystal structure described by MgMn4FeO8 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form distorted MgO6 octahedra that share corners with six equivalent Mn(2)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(3)O6 octahedra, edges with two equivalent Mn(4)O6 octahedra, and edges with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-21°. There are four inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(3), one O(4), one O(5), one O(6), and one O(8) atom to form MnO6 octahedra that share corners with six equivalent Mn(3)O6 octahedra, edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, edges with two equivalent Mn(4)O6 octahedra, and edges with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 7-16°. In the second Mn site, Mn(2) is bonded to one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form MnO6 octahedra that share corners with six equivalent Mg(1)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(3)O6 octahedra, edges with two equivalent Mn(4)O6 octahedra, and edges with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-21°. In the third Mn site, Mn(3) is bonded to one O(1), one O(3), one O(4), one O(5), one O(6), and one O(8) atom to form MnO6 octahedra that share corners with six equivalent Mn(1)O6 octahedra, edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, edges with two equivalent Mn(4)O6 octahedra, and edges with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 7-16°. In the fourth Mn site, Mn(4) is bonded to one O(1), one O(2), one O(4), one O(5), one O(7), and one O(8) atom to form MnO6 octahedra that share edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, edges with two equivalent Mn(3)O6 octahedra, and edges with two equivalent Fe(1)O6 octahedra. Fe(1) is bonded to one O(1), one O(2), one O(3), one O(6), one O(7), and one O(8) atom to form FeO6 octahedra that share edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, edges with two equivalent Mn(3)O6 octahedra, and edges with two equivalent Mn(4)O6 octahedra. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Mn(1), one Mn(3), one Mn(4), and one Fe(1) atom. In the second O site, O(2) is bonded in a distorted see-saw-like geometry to one Mg(1), one Mn(2), one Mn(4), and one Fe(1) atom. In the third O site, O(3) is bonded to one Mg(1), one Mn(1), one Mn(2), one Mn(3), and one Fe(1) atom to form OMgMn3Fe square pyramids that share corners with five equivalent O(6)MgMn3Fe square pyramids,  a cornercorner with one O(7)MgMn2Fe trigonal pyramid, edges with two equivalent O(4)MgMn4 square pyramids, edges with two equivalent O(5)MgMn4 square pyramids, and  an edgeedge with one O(7)MgMn2Fe trigonal pyramid. In the fourth O site, O(4) is bonded to one Mg(1), one Mn(1), one Mn(2), one Mn(3), and one Mn(4) atom to form OMgMn4 square pyramids that share corners with five equivalent O(5)MgMn4 square pyramids,  a cornercorner with one O(7)MgMn2Fe trigonal pyramid, edges with two equivalent O(3)MgMn3Fe square pyramids, edges with two equivalent O(6)MgMn3Fe square pyramids, and  an edgeedge with one O(7)MgMn2Fe trigonal pyramid. In the fifth O site, O(5) is bonded to one Mg(1), one Mn(1), one Mn(2), one Mn(3), and one Mn(4) atom to form OMgMn4 square pyramids that share corners with five equivalent O(4)MgMn4 square pyramids,  a cornercorner with one O(7)MgMn2Fe trigonal pyramid, edges with two equivalent O(3)MgMn3Fe square pyramids, edges with two equivalent O(6)MgMn3Fe square pyramids, and  an edgeedge with one O(7)MgMn2Fe trigonal pyramid. In the sixth O site, O(6) is bonded to one Mg(1), one Mn(1), one Mn(2), one Mn(3), and one Fe(1) atom to form distorted OMgMn3Fe square pyramids that share corners with five equivalent O(3)MgMn3Fe square pyramids,  a cornercorner with one O(7)MgMn2Fe trigonal pyramid, edges with two equivalent O(4)MgMn4 square pyramids, edges with two equivalent O(5)MgMn4 square pyramids, and  an edgeedge with one O(7)MgMn2Fe trigonal pyramid. In the seventh O site, O(7) is bonded to one Mg(1), one Mn(2), one Mn(4), and one Fe(1) atom to form OMgMn2Fe trigonal pyramids that share  a cornercorner with one O(3)MgMn3Fe square pyramid,  a cornercorner with one O(6)MgMn3Fe square pyramid,  a cornercorner with one O(4)MgMn4 square pyramid,  a cornercorner with one O(5)MgMn4 square pyramid,  an edgeedge with one O(3)MgMn3Fe square pyramid,  an edgeedge with one O(6)MgMn3Fe square pyramid,  an edgeedge with one O(4)MgMn4 square pyramid, and  an edgeedge with one O(5)MgMn4 square pyramid. In the eighth O site, O(8) is bonded in a distorted rectangular see-saw-like geometry to one Mn(1), one Mn(3), one Mn(4), and one Fe(1) atom. is represented by the CIF card [CIF]
data_MgMn4FeO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.267
_cell_length_b   6.150
_cell_length_c   6.041
_cell_angle_alpha   84.145
_cell_angle_beta   59.050
_cell_angle_gamma   56.344
_symmetry_Int_Tables_number   1
_cell_volume   160.663
_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  0.896  0.549  0.540  1.0
  Mn  Mn1  1  0.445  0.499  0.524  1.0
  Mn  Mn2  1  0.958  0.005  0.017  1.0
  Mn  Mn3  1  0.444  0.017  0.044  1.0
  Mn  Mn4  1  0.950  0.504  0.022  1.0
  Fe  Fe5  1  0.449  0.506  0.026  1.0
  O  O6  1  0.395  0.281  0.820  1.0
  O  O7  1  0.938  0.289  0.823  1.0
  O  O8  1  0.414  0.758  0.782  1.0
  O  O9  1  0.926  0.736  0.780  1.0
  O  O10  1  0.967  0.281  0.273  1.0
  O  O11  1  0.507  0.238  0.251  1.0
  O  O12  1  0.966  0.726  0.219  1.0
  O  O13  1  0.504  0.726  0.234  1.0
[/CIF]
.
The crystal structure described by MgMn4FeO8 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form distorted MgO6 octahedra that share corners with six equivalent Mn(2)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(3)O6 octahedra, edges with two equivalent Mn(4)O6 octahedra, and edges with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-21°. There are four inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(3), one O(4), one O(5), one O(6), and one O(8) atom to form MnO6 octahedra that share corners with six equivalent Mn(3)O6 octahedra, edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, edges with two equivalent Mn(4)O6 octahedra, and edges with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 7-16°. In the second Mn site, Mn(2) is bonded to one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form MnO6 octahedra that share corners with six equivalent Mg(1)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(3)O6 octahedra, edges with two equivalent Mn(4)O6 octahedra, and edges with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-21°. In the third Mn site, Mn(3) is bonded to one O(1), one O(3), one O(4), one O(5), one O(6), and one O(8) atom to form MnO6 octahedra that share corners with six equivalent Mn(1)O6 octahedra, edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, edges with two equivalent Mn(4)O6 octahedra, and edges with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 7-16°. In the fourth Mn site, Mn(4) is bonded to one O(1), one O(2), one O(4), one O(5), one O(7), and one O(8) atom to form MnO6 octahedra that share edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, edges with two equivalent Mn(3)O6 octahedra, and edges with two equivalent Fe(1)O6 octahedra. Fe(1) is bonded to one O(1), one O(2), one O(3), one O(6), one O(7), and one O(8) atom to form FeO6 octahedra that share edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, edges with two equivalent Mn(3)O6 octahedra, and edges with two equivalent Mn(4)O6 octahedra. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Mn(1), one Mn(3), one Mn(4), and one Fe(1) atom. In the second O site, O(2) is bonded in a distorted see-saw-like geometry to one Mg(1), one Mn(2), one Mn(4), and one Fe(1) atom. In the third O site, O(3) is bonded to one Mg(1), one Mn(1), one Mn(2), one Mn(3), and one Fe(1) atom to form OMgMn3Fe square pyramids that share corners with five equivalent O(6)MgMn3Fe square pyramids,  a cornercorner with one O(7)MgMn2Fe trigonal pyramid, edges with two equivalent O(4)MgMn4 square pyramids, edges with two equivalent O(5)MgMn4 square pyramids, and  an edgeedge with one O(7)MgMn2Fe trigonal pyramid. In the fourth O site, O(4) is bonded to one Mg(1), one Mn(1), one Mn(2), one Mn(3), and one Mn(4) atom to form OMgMn4 square pyramids that share corners with five equivalent O(5)MgMn4 square pyramids,  a cornercorner with one O(7)MgMn2Fe trigonal pyramid, edges with two equivalent O(3)MgMn3Fe square pyramids, edges with two equivalent O(6)MgMn3Fe square pyramids, and  an edgeedge with one O(7)MgMn2Fe trigonal pyramid. In the fifth O site, O(5) is bonded to one Mg(1), one Mn(1), one Mn(2), one Mn(3), and one Mn(4) atom to form OMgMn4 square pyramids that share corners with five equivalent O(4)MgMn4 square pyramids,  a cornercorner with one O(7)MgMn2Fe trigonal pyramid, edges with two equivalent O(3)MgMn3Fe square pyramids, edges with two equivalent O(6)MgMn3Fe square pyramids, and  an edgeedge with one O(7)MgMn2Fe trigonal pyramid. In the sixth O site, O(6) is bonded to one Mg(1), one Mn(1), one Mn(2), one Mn(3), and one Fe(1) atom to form distorted OMgMn3Fe square pyramids that share corners with five equivalent O(3)MgMn3Fe square pyramids,  a cornercorner with one O(7)MgMn2Fe trigonal pyramid, edges with two equivalent O(4)MgMn4 square pyramids, edges with two equivalent O(5)MgMn4 square pyramids, and  an edgeedge with one O(7)MgMn2Fe trigonal pyramid. In the seventh O site, O(7) is bonded to one Mg(1), one Mn(2), one Mn(4), and one Fe(1) atom to form OMgMn2Fe trigonal pyramids that share  a cornercorner with one O(3)MgMn3Fe square pyramid,  a cornercorner with one O(6)MgMn3Fe square pyramid,  a cornercorner with one O(4)MgMn4 square pyramid,  a cornercorner with one O(5)MgMn4 square pyramid,  an edgeedge with one O(3)MgMn3Fe square pyramid,  an edgeedge with one O(6)MgMn3Fe square pyramid,  an edgeedge with one O(4)MgMn4 square pyramid, and  an edgeedge with one O(5)MgMn4 square pyramid. In the eighth O site, O(8) is bonded in a distorted rectangular see-saw-like geometry to one Mn(1), one Mn(3), one Mn(4), and one Fe(1) atom. is represented by the CIF card [CIF]
data_MgMn4FeO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.267
_cell_length_b   6.150
_cell_length_c   6.041
_cell_angle_alpha   84.145
_cell_angle_beta   59.050
_cell_angle_gamma   56.344
_symmetry_Int_Tables_number   1
_cell_volume   160.663
_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  0.896  0.549  0.540  1.0
  Mn  Mn1  1  0.445  0.499  0.524  1.0
  Mn  Mn2  1  0.958  0.005  0.017  1.0
  Mn  Mn3  1  0.444  0.017  0.044  1.0
  Mn  Mn4  1  0.950  0.504  0.022  1.0
  Fe  Fe5  1  0.449  0.506  0.026  1.0
  O  O6  1  0.395  0.281  0.820  1.0
  O  O7  1  0.938  0.289  0.823  1.0
  O  O8  1  0.414  0.758  0.782  1.0
  O  O9  1  0.926  0.736  0.780  1.0
  O  O10  1  0.967  0.281  0.273  1.0
  O  O11  1  0.507  0.238  0.251  1.0
  O  O12  1  0.966  0.726  0.219  1.0
  O  O13  1  0.504  0.726  0.234  1.0
[/CIF]
.