The crystal structure described by MgLa4Ga2(FeO6)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(2), one O(5), and one O(8) atom to form distorted MgO4 tetrahedra that share  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one La(1)O7 pentagonal bipyramid, corners with two equivalent Ga(2)O5 trigonal bipyramids, and  an edgeedge with one La(1)O7 pentagonal bipyramid. The corner-sharing octahedral tilt angles are 27°. There are four inequivalent La sites. In the first La site, La(1) is bonded to one O(1), one O(11), one O(12), one O(2), one O(5), one O(6), and one O(7) atom to form distorted LaO7 pentagonal bipyramids that share  a cornercorner with one Ga(1)O5 square pyramid,  a cornercorner with one Mg(1)O4 tetrahedra, edges with two equivalent Fe(2)O6 octahedra,  an edgeedge with one Ga(1)O5 square pyramid,  an edgeedge with one Mg(1)O4 tetrahedra, and  an edgeedge with one Ga(2)O5 trigonal bipyramid. In the second La site, La(2) is bonded in a 7-coordinate geometry to one O(1), one O(11), one O(12), one O(2), one O(5), one O(6), and one O(8) atom. In the third La site, La(3) is bonded in a 7-coordinate geometry to one O(10), one O(11), one O(3), one O(4), one O(7), one O(8), and one O(9) atom. In the fourth La site, La(4) is bonded in a 8-coordinate geometry to one O(10), one O(12), one O(3), one O(4), one O(6), one O(7), one O(8), and one O(9) atom. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a distorted see-saw-like geometry to one O(12), one O(2), one O(4), and one O(9) atom. In the second Fe site, Fe(2) is bonded to one O(1), one O(10), one O(11), one O(3), one O(6), and one O(7) atom to form FeO6 octahedra that share corners with four equivalent Ga(1)O5 square pyramids,  a cornercorner with one Mg(1)O4 tetrahedra,  a cornercorner with one Ga(2)O5 trigonal bipyramid, and edges with two equivalent La(1)O7 pentagonal bipyramids. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one O(10), one O(11), one O(4), one O(6), and one O(7) atom to form GaO5 square pyramids that share corners with four equivalent Fe(2)O6 octahedra,  a cornercorner with one La(1)O7 pentagonal bipyramid, and  an edgeedge with one La(1)O7 pentagonal bipyramid. The corner-sharing octahedral tilt angles range from 21-44°. In the second Ga site, Ga(2) is bonded to one O(12), one O(3), one O(5), one O(8), and one O(9) atom to form GaO5 trigonal bipyramids that share  a cornercorner with one Fe(2)O6 octahedra, corners with two equivalent Mg(1)O4 tetrahedra, and  an edgeedge with one La(1)O7 pentagonal bipyramid. The corner-sharing octahedral tilt angles are 38°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Mg(1), one La(1), one La(2), and one Fe(2) atom. In the second O site, O(2) is bonded in a distorted see-saw-like geometry to one Mg(1), one La(1), one La(2), and one Fe(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one La(3), one La(4), one Fe(2), and one Ga(2) atom. In the fourth O site, O(4) is bonded to one La(3), one La(4), one Fe(1), and one Ga(1) atom to form distorted OLa2GaFe tetrahedra that share  a cornercorner with one O(10)La2GaFe tetrahedra, corners with three equivalent O(9)La2GaFe tetrahedra, corners with three equivalent O(7)La3GaFe trigonal bipyramids,  an edgeedge with one O(10)La2GaFe tetrahedra, and  an edgeedge with one O(11)La3GaFe trigonal bipyramid. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Mg(1), one La(1), one La(2), and one Ga(2) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one La(1), one La(2), one La(4), one Fe(2), and one Ga(1) atom. In the seventh O site, O(7) is bonded to one La(1), one La(3), one La(4), one Fe(2), and one Ga(1) atom to form distorted OLa3GaFe trigonal bipyramids that share corners with three equivalent O(4)La2GaFe tetrahedra, corners with two equivalent O(11)La3GaFe trigonal bipyramids,  an edgeedge with one O(9)La2GaFe tetrahedra, edges with two equivalent O(10)La2GaFe tetrahedra, and  an edgeedge with one O(11)La3GaFe trigonal bipyramid. In the eighth O site, O(8) is bonded in a 2-coordinate geometry to one Mg(1), one La(2), one La(3), one La(4), and one Ga(2) atom. In the ninth O site, O(9) is bonded to one La(3), one La(4), one Fe(1), and one Ga(2) atom to form distorted OLa2GaFe tetrahedra that share corners with two equivalent O(10)La2GaFe tetrahedra, corners with three equivalent O(4)La2GaFe tetrahedra,  a cornercorner with one O(11)La3GaFe trigonal bipyramid, and  an edgeedge with one O(7)La3GaFe trigonal bipyramid. In the tenth O site, O(10) is bonded to one La(3), one La(4), one Fe(2), and one Ga(1) atom to form distorted OLa2GaFe tetrahedra that share  a cornercorner with one O(4)La2GaFe tetrahedra, corners with two equivalent O(9)La2GaFe tetrahedra,  a cornercorner with one O(11)La3GaFe trigonal bipyramid,  an edgeedge with one O(4)La2GaFe tetrahedra,  an edgeedge with one O(11)La3GaFe trigonal bipyramid, and edges with two equivalent O(7)La3GaFe trigonal bipyramids. In the eleventh O site, O(11) is bonded to one La(1), one La(2), one La(3), one Fe(2), and one Ga(1) atom to form distorted OLa3GaFe trigonal bipyramids that share  a cornercorner with one O(10)La2GaFe tetrahedra,  a cornercorner with one O(9)La2GaFe tetrahedra, corners with two equivalent O(7)La3GaFe trigonal bipyramids,  an edgeedge with one O(10)La2GaFe tetrahedra,  an edgeedge with one O(4)La2GaFe tetrahedra, and  an edgeedge with one O(7)La3GaFe trigonal bipyramid. In the twelfth O site, O(12) is bonded in a 5-coordinate geometry to one La(1), one La(2), one La(4), one Fe(1), and one Ga(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_La4MgGa2(FeO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.047
_cell_length_b   5.699
_cell_length_c   8.445
_cell_angle_alpha   95.811
_cell_angle_beta   91.436
_cell_angle_gamma   86.068
_symmetry_Int_Tables_number   1
_cell_volume   288.772
_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
  La  La0  1  0.376  0.459  0.798  1.0
  La  La1  1  0.922  0.055  0.730  1.0
  La  La2  1  0.558  0.523  0.227  1.0
  La  La3  1  0.047  0.965  0.244  1.0
  Mg  Mg4  1  0.725  0.624  0.605  1.0
  Ga  Ga5  1  0.983  0.465  0.038  1.0
  Ga  Ga6  1  0.483  0.044  0.458  1.0
  Fe  Fe7  1  0.116  0.494  0.464  1.0
  Fe  Fe8  1  0.514  0.979  0.999  1.0
  O  O9  1  0.558  0.827  0.772  1.0
  O  O10  1  0.030  0.633  0.692  1.0
  O  O11  1  0.449  0.120  0.237  1.0
  O  O12  1  0.964  0.385  0.256  1.0
  O  O13  1  0.642  0.301  0.579  1.0
  O  O14  1  0.163  0.204  0.936  1.0
  O  O15  1  0.261  0.664  0.054  1.0
  O  O16  1  0.755  0.842  0.442  1.0
  O  O17  1  0.310  0.743  0.404  1.0
  O  O18  1  0.798  0.753  0.077  1.0
  O  O19  1  0.701  0.296  0.954  1.0
  O  O20  1  0.204  0.183  0.550  1.0
[/CIF]
.
The crystal structure described by MgLa4Ga2(FeO6)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(2), one O(5), and one O(8) atom to form distorted MgO4 tetrahedra that share  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one La(1)O7 pentagonal bipyramid, corners with two equivalent Ga(2)O5 trigonal bipyramids, and  an edgeedge with one La(1)O7 pentagonal bipyramid. The corner-sharing octahedral tilt angles are 27°. There are four inequivalent La sites. In the first La site, La(1) is bonded to one O(1), one O(11), one O(12), one O(2), one O(5), one O(6), and one O(7) atom to form distorted LaO7 pentagonal bipyramids that share  a cornercorner with one Ga(1)O5 square pyramid,  a cornercorner with one Mg(1)O4 tetrahedra, edges with two equivalent Fe(2)O6 octahedra,  an edgeedge with one Ga(1)O5 square pyramid,  an edgeedge with one Mg(1)O4 tetrahedra, and  an edgeedge with one Ga(2)O5 trigonal bipyramid. In the second La site, La(2) is bonded in a 7-coordinate geometry to one O(1), one O(11), one O(12), one O(2), one O(5), one O(6), and one O(8) atom. In the third La site, La(3) is bonded in a 7-coordinate geometry to one O(10), one O(11), one O(3), one O(4), one O(7), one O(8), and one O(9) atom. In the fourth La site, La(4) is bonded in a 8-coordinate geometry to one O(10), one O(12), one O(3), one O(4), one O(6), one O(7), one O(8), and one O(9) atom. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a distorted see-saw-like geometry to one O(12), one O(2), one O(4), and one O(9) atom. In the second Fe site, Fe(2) is bonded to one O(1), one O(10), one O(11), one O(3), one O(6), and one O(7) atom to form FeO6 octahedra that share corners with four equivalent Ga(1)O5 square pyramids,  a cornercorner with one Mg(1)O4 tetrahedra,  a cornercorner with one Ga(2)O5 trigonal bipyramid, and edges with two equivalent La(1)O7 pentagonal bipyramids. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one O(10), one O(11), one O(4), one O(6), and one O(7) atom to form GaO5 square pyramids that share corners with four equivalent Fe(2)O6 octahedra,  a cornercorner with one La(1)O7 pentagonal bipyramid, and  an edgeedge with one La(1)O7 pentagonal bipyramid. The corner-sharing octahedral tilt angles range from 21-44°. In the second Ga site, Ga(2) is bonded to one O(12), one O(3), one O(5), one O(8), and one O(9) atom to form GaO5 trigonal bipyramids that share  a cornercorner with one Fe(2)O6 octahedra, corners with two equivalent Mg(1)O4 tetrahedra, and  an edgeedge with one La(1)O7 pentagonal bipyramid. The corner-sharing octahedral tilt angles are 38°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Mg(1), one La(1), one La(2), and one Fe(2) atom. In the second O site, O(2) is bonded in a distorted see-saw-like geometry to one Mg(1), one La(1), one La(2), and one Fe(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one La(3), one La(4), one Fe(2), and one Ga(2) atom. In the fourth O site, O(4) is bonded to one La(3), one La(4), one Fe(1), and one Ga(1) atom to form distorted OLa2GaFe tetrahedra that share  a cornercorner with one O(10)La2GaFe tetrahedra, corners with three equivalent O(9)La2GaFe tetrahedra, corners with three equivalent O(7)La3GaFe trigonal bipyramids,  an edgeedge with one O(10)La2GaFe tetrahedra, and  an edgeedge with one O(11)La3GaFe trigonal bipyramid. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Mg(1), one La(1), one La(2), and one Ga(2) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one La(1), one La(2), one La(4), one Fe(2), and one Ga(1) atom. In the seventh O site, O(7) is bonded to one La(1), one La(3), one La(4), one Fe(2), and one Ga(1) atom to form distorted OLa3GaFe trigonal bipyramids that share corners with three equivalent O(4)La2GaFe tetrahedra, corners with two equivalent O(11)La3GaFe trigonal bipyramids,  an edgeedge with one O(9)La2GaFe tetrahedra, edges with two equivalent O(10)La2GaFe tetrahedra, and  an edgeedge with one O(11)La3GaFe trigonal bipyramid. In the eighth O site, O(8) is bonded in a 2-coordinate geometry to one Mg(1), one La(2), one La(3), one La(4), and one Ga(2) atom. In the ninth O site, O(9) is bonded to one La(3), one La(4), one Fe(1), and one Ga(2) atom to form distorted OLa2GaFe tetrahedra that share corners with two equivalent O(10)La2GaFe tetrahedra, corners with three equivalent O(4)La2GaFe tetrahedra,  a cornercorner with one O(11)La3GaFe trigonal bipyramid, and  an edgeedge with one O(7)La3GaFe trigonal bipyramid. In the tenth O site, O(10) is bonded to one La(3), one La(4), one Fe(2), and one Ga(1) atom to form distorted OLa2GaFe tetrahedra that share  a cornercorner with one O(4)La2GaFe tetrahedra, corners with two equivalent O(9)La2GaFe tetrahedra,  a cornercorner with one O(11)La3GaFe trigonal bipyramid,  an edgeedge with one O(4)La2GaFe tetrahedra,  an edgeedge with one O(11)La3GaFe trigonal bipyramid, and edges with two equivalent O(7)La3GaFe trigonal bipyramids. In the eleventh O site, O(11) is bonded to one La(1), one La(2), one La(3), one Fe(2), and one Ga(1) atom to form distorted OLa3GaFe trigonal bipyramids that share  a cornercorner with one O(10)La2GaFe tetrahedra,  a cornercorner with one O(9)La2GaFe tetrahedra, corners with two equivalent O(7)La3GaFe trigonal bipyramids,  an edgeedge with one O(10)La2GaFe tetrahedra,  an edgeedge with one O(4)La2GaFe tetrahedra, and  an edgeedge with one O(7)La3GaFe trigonal bipyramid. In the twelfth O site, O(12) is bonded in a 5-coordinate geometry to one La(1), one La(2), one La(4), one Fe(1), and one Ga(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_La4MgGa2(FeO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.047
_cell_length_b   5.699
_cell_length_c   8.445
_cell_angle_alpha   95.811
_cell_angle_beta   91.436
_cell_angle_gamma   86.068
_symmetry_Int_Tables_number   1
_cell_volume   288.772
_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
  La  La0  1  0.376  0.459  0.798  1.0
  La  La1  1  0.922  0.055  0.730  1.0
  La  La2  1  0.558  0.523  0.227  1.0
  La  La3  1  0.047  0.965  0.244  1.0
  Mg  Mg4  1  0.725  0.624  0.605  1.0
  Ga  Ga5  1  0.983  0.465  0.038  1.0
  Ga  Ga6  1  0.483  0.044  0.458  1.0
  Fe  Fe7  1  0.116  0.494  0.464  1.0
  Fe  Fe8  1  0.514  0.979  0.999  1.0
  O  O9  1  0.558  0.827  0.772  1.0
  O  O10  1  0.030  0.633  0.692  1.0
  O  O11  1  0.449  0.120  0.237  1.0
  O  O12  1  0.964  0.385  0.256  1.0
  O  O13  1  0.642  0.301  0.579  1.0
  O  O14  1  0.163  0.204  0.936  1.0
  O  O15  1  0.261  0.664  0.054  1.0
  O  O16  1  0.755  0.842  0.442  1.0
  O  O17  1  0.310  0.743  0.404  1.0
  O  O18  1  0.798  0.753  0.077  1.0
  O  O19  1  0.701  0.296  0.954  1.0
  O  O20  1  0.204  0.183  0.550  1.0
[/CIF]
.