The material structure described by NaMg14Ce crystallizes in the orthorhombic Amm2 space group. Na(1) is bonded to two equivalent Mg(7), four equivalent Mg(3), four equivalent Mg(5), and two equivalent Ce(1) atoms to form NaCe2Mg10 cuboctahedra that share corners with four equivalent Mg(1)Mg12 cuboctahedra, corners with six equivalent Na(1)Ce2Mg10 cuboctahedra, corners with eight equivalent Mg(4)Mg12 cuboctahedra, edges with two equivalent Ce(1)Na2Mg10 cuboctahedra, edges with four equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, edges with four equivalent Mg(7)NaMg11 cuboctahedra, edges with eight equivalent Mg(5)NaCeMg10 cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, faces with two equivalent Mg(7)NaMg11 cuboctahedra, faces with two equivalent Ce(1)Na2Mg10 cuboctahedra, faces with four equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, faces with four equivalent Mg(5)NaCeMg10 cuboctahedra, and faces with six equivalent Mg(6)CeMg11 cuboctahedra. There are seven inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to two equivalent Mg(2), two equivalent Mg(6), four equivalent Mg(4), and four equivalent Mg(5) atoms to form MgMg12 cuboctahedra that share corners with four equivalent Na(1)Ce2Mg10 cuboctahedra, corners with six equivalent Mg(1)Mg12 cuboctahedra, corners with eight equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with four equivalent Mg(6)CeMg11 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with eight equivalent Mg(5)NaCeMg10 cuboctahedra, faces with two equivalent Mg(6)CeMg11 cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, faces with two equivalent Ce(1)Na2Mg10 cuboctahedra, faces with four equivalent Mg(4)Mg12 cuboctahedra, faces with four equivalent Mg(5)NaCeMg10 cuboctahedra, and faces with six equivalent Mg(7)NaMg11 cuboctahedra. In the second Mg site, Mg(2) is bonded to two equivalent Mg(1), two equivalent Mg(7), four equivalent Mg(4), and four equivalent Mg(5) atoms to form MgMg12 cuboctahedra that share corners with four equivalent Ce(1)Na2Mg10 cuboctahedra, corners with six equivalent Mg(2)Mg12 cuboctahedra, corners with eight equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with four equivalent Mg(7)NaMg11 cuboctahedra, edges with eight equivalent Mg(5)NaCeMg10 cuboctahedra, faces with two equivalent Na(1)Ce2Mg10 cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent Mg(7)NaMg11 cuboctahedra, faces with four equivalent Mg(4)Mg12 cuboctahedra, faces with four equivalent Mg(5)NaCeMg10 cuboctahedra, and faces with six equivalent Mg(6)CeMg11 cuboctahedra. In the third Mg site, Mg(3) is bonded to two equivalent Na(1), two equivalent Mg(3), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), and two equivalent Ce(1) atoms to form distorted MgNa2Ce2Mg8 cuboctahedra that share corners with four equivalent Mg(1)Mg12 cuboctahedra, corners with four equivalent Mg(2)Mg12 cuboctahedra, corners with four equivalent Mg(4)Mg12 cuboctahedra, corners with six equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, edges with two equivalent Na(1)Ce2Mg10 cuboctahedra, edges with two equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, edges with two equivalent Ce(1)Na2Mg10 cuboctahedra, edges with four equivalent Mg(6)CeMg11 cuboctahedra, edges with four equivalent Mg(5)NaCeMg10 cuboctahedra, edges with four equivalent Mg(7)NaMg11 cuboctahedra, faces with two equivalent Na(1)Ce2Mg10 cuboctahedra, faces with two equivalent Mg(6)CeMg11 cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, faces with two equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, faces with two equivalent Mg(7)NaMg11 cuboctahedra, faces with two equivalent Ce(1)Na2Mg10 cuboctahedra, and faces with eight equivalent Mg(5)NaCeMg10 cuboctahedra. In the fourth Mg site, Mg(4) is bonded to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(4), two equivalent Mg(5), two equivalent Mg(6), and two equivalent Mg(7) atoms to form MgMg12 cuboctahedra that share corners with four equivalent Na(1)Ce2Mg10 cuboctahedra, corners with four equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, corners with four equivalent Ce(1)Na2Mg10 cuboctahedra, corners with six equivalent Mg(4)Mg12 cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with two equivalent Mg(4)Mg12 cuboctahedra, edges with four equivalent Mg(6)CeMg11 cuboctahedra, edges with four equivalent Mg(5)NaCeMg10 cuboctahedra, edges with four equivalent Mg(7)NaMg11 cuboctahedra, faces with two equivalent Mg(6)CeMg11 cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, faces with two equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, faces with two equivalent Mg(7)NaMg11 cuboctahedra, and faces with eight equivalent Mg(5)NaCeMg10 cuboctahedra. In the fifth Mg site, Mg(5) is bonded to one Na(1), one Mg(1), one Mg(2), one Mg(3), one Mg(4), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), and one Ce(1) atom to form distorted MgNaCeMg10 cuboctahedra that share corners with four equivalent Mg(6)CeMg11 cuboctahedra, corners with four equivalent Mg(7)NaMg11 cuboctahedra, corners with ten equivalent Mg(5)NaCeMg10 cuboctahedra, edges with two equivalent Na(1)Ce2Mg10 cuboctahedra, edges with two equivalent Mg(6)CeMg11 cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with two equivalent Mg(4)Mg12 cuboctahedra, edges with two equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, edges with two equivalent Mg(5)NaCeMg10 cuboctahedra, edges with two equivalent Mg(7)NaMg11 cuboctahedra, edges with two equivalent Ce(1)Na2Mg10 cuboctahedra,  a faceface with one Na(1)Ce2Mg10 cuboctahedra,  a faceface with one Mg(1)Mg12 cuboctahedra,  a faceface with one Mg(2)Mg12 cuboctahedra,  a faceface with one Ce(1)Na2Mg10 cuboctahedra, faces with two equivalent Mg(6)CeMg11 cuboctahedra, faces with two equivalent Mg(7)NaMg11 cuboctahedra, faces with four equivalent Mg(4)Mg12 cuboctahedra, faces with four equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, and faces with four equivalent Mg(5)NaCeMg10 cuboctahedra. In the sixth Mg site, Mg(6) is bonded to one Mg(1), two equivalent Mg(3), two equivalent Mg(4), two equivalent Mg(7), four equivalent Mg(5), and one Ce(1) atom to form MgCeMg11 cuboctahedra that share corners with four equivalent Mg(7)NaMg11 cuboctahedra, corners with six equivalent Mg(6)CeMg11 cuboctahedra, corners with eight equivalent Mg(5)NaCeMg10 cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with two equivalent Mg(7)NaMg11 cuboctahedra, edges with two equivalent Ce(1)Na2Mg10 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with four equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, edges with four equivalent Mg(5)NaCeMg10 cuboctahedra,  a faceface with one Mg(1)Mg12 cuboctahedra,  a faceface with one Ce(1)Na2Mg10 cuboctahedra, faces with two equivalent Mg(6)CeMg11 cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, faces with two equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, faces with two equivalent Mg(7)NaMg11 cuboctahedra, faces with three equivalent Na(1)Ce2Mg10 cuboctahedra, faces with three equivalent Mg(2)Mg12 cuboctahedra, and faces with four equivalent Mg(5)NaCeMg10 cuboctahedra. In the seventh Mg site, Mg(7) is bonded to one Na(1), one Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent Mg(6), and four equivalent Mg(5) atoms to form distorted MgNaMg11 cuboctahedra that share corners with four equivalent Mg(6)CeMg11 cuboctahedra, corners with six equivalent Mg(7)NaMg11 cuboctahedra, corners with eight equivalent Mg(5)NaCeMg10 cuboctahedra, edges with two equivalent Na(1)Ce2Mg10 cuboctahedra, edges with two equivalent Mg(6)CeMg11 cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with four equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, edges with four equivalent Mg(5)NaCeMg10 cuboctahedra,  a faceface with one Na(1)Ce2Mg10 cuboctahedra,  a faceface with one Mg(2)Mg12 cuboctahedra, faces with two equivalent Mg(6)CeMg11 cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, faces with two equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, faces with two equivalent Mg(7)NaMg11 cuboctahedra, faces with three equivalent Mg(1)Mg12 cuboctahedra, faces with three equivalent Ce(1)Na2Mg10 cuboctahedra, and faces with four equivalent Mg(5)NaCeMg10 cuboctahedra. Ce(1) is bonded to two equivalent Na(1), two equivalent Mg(6), four equivalent Mg(3), and four equivalent Mg(5) atoms to form CeNa2Mg10 cuboctahedra that share corners with four equivalent Mg(2)Mg12 cuboctahedra, corners with six equivalent Ce(1)Na2Mg10 cuboctahedra, corners with eight equivalent Mg(4)Mg12 cuboctahedra, edges with two equivalent Na(1)Ce2Mg10 cuboctahedra, edges with four equivalent Mg(6)CeMg11 cuboctahedra, edges with four equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, edges with eight equivalent Mg(5)NaCeMg10 cuboctahedra, faces with two equivalent Na(1)Ce2Mg10 cuboctahedra, faces with two equivalent Mg(6)CeMg11 cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with four equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, faces with four equivalent Mg(5)NaCeMg10 cuboctahedra, and faces with six equivalent Mg(7)NaMg11 cuboctahedra. is represented by the CIF file [CIF]
data_NaCeMg14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.605
_cell_length_b   6.499
_cell_length_c   10.455
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.473
_symmetry_Int_Tables_number   1
_cell_volume   390.681
_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
  Na  Na0  1  0.168  0.834  0.125  1.0
  Ce  Ce1  1  0.166  0.333  0.125  1.0
  Mg  Mg2  1  0.164  0.332  0.625  1.0
  Mg  Mg3  1  0.164  0.832  0.625  1.0
  Mg  Mg4  1  0.658  0.320  0.125  1.0
  Mg  Mg5  1  0.669  0.335  0.625  1.0
  Mg  Mg6  1  0.658  0.838  0.125  1.0
  Mg  Mg7  1  0.669  0.834  0.625  1.0
  Mg  Mg8  1  0.339  0.170  0.386  1.0
  Mg  Mg9  1  0.339  0.170  0.864  1.0
  Mg  Mg10  1  0.339  0.669  0.386  1.0
  Mg  Mg11  1  0.339  0.669  0.864  1.0
  Mg  Mg12  1  0.833  0.167  0.381  1.0
  Mg  Mg13  1  0.833  0.167  0.869  1.0
  Mg  Mg14  1  0.831  0.666  0.372  1.0
  Mg  Mg15  1  0.831  0.666  0.878  1.0
[/CIF]
.
The material structure described by NaMg14Ce crystallizes in the orthorhombic Amm2 space group. Na(1) is bonded to two equivalent Mg(7), four equivalent Mg(3), four equivalent Mg(5), and two equivalent Ce(1) atoms to form NaCe2Mg10 cuboctahedra that share corners with four equivalent Mg(1)Mg12 cuboctahedra, corners with six equivalent Na(1)Ce2Mg10 cuboctahedra, corners with eight equivalent Mg(4)Mg12 cuboctahedra, edges with two equivalent Ce(1)Na2Mg10 cuboctahedra, edges with four equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, edges with four equivalent Mg(7)NaMg11 cuboctahedra, edges with eight equivalent Mg(5)NaCeMg10 cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, faces with two equivalent Mg(7)NaMg11 cuboctahedra, faces with two equivalent Ce(1)Na2Mg10 cuboctahedra, faces with four equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, faces with four equivalent Mg(5)NaCeMg10 cuboctahedra, and faces with six equivalent Mg(6)CeMg11 cuboctahedra. There are seven inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to two equivalent Mg(2), two equivalent Mg(6), four equivalent Mg(4), and four equivalent Mg(5) atoms to form MgMg12 cuboctahedra that share corners with four equivalent Na(1)Ce2Mg10 cuboctahedra, corners with six equivalent Mg(1)Mg12 cuboctahedra, corners with eight equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with four equivalent Mg(6)CeMg11 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with eight equivalent Mg(5)NaCeMg10 cuboctahedra, faces with two equivalent Mg(6)CeMg11 cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, faces with two equivalent Ce(1)Na2Mg10 cuboctahedra, faces with four equivalent Mg(4)Mg12 cuboctahedra, faces with four equivalent Mg(5)NaCeMg10 cuboctahedra, and faces with six equivalent Mg(7)NaMg11 cuboctahedra. In the second Mg site, Mg(2) is bonded to two equivalent Mg(1), two equivalent Mg(7), four equivalent Mg(4), and four equivalent Mg(5) atoms to form MgMg12 cuboctahedra that share corners with four equivalent Ce(1)Na2Mg10 cuboctahedra, corners with six equivalent Mg(2)Mg12 cuboctahedra, corners with eight equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with four equivalent Mg(7)NaMg11 cuboctahedra, edges with eight equivalent Mg(5)NaCeMg10 cuboctahedra, faces with two equivalent Na(1)Ce2Mg10 cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent Mg(7)NaMg11 cuboctahedra, faces with four equivalent Mg(4)Mg12 cuboctahedra, faces with four equivalent Mg(5)NaCeMg10 cuboctahedra, and faces with six equivalent Mg(6)CeMg11 cuboctahedra. In the third Mg site, Mg(3) is bonded to two equivalent Na(1), two equivalent Mg(3), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), and two equivalent Ce(1) atoms to form distorted MgNa2Ce2Mg8 cuboctahedra that share corners with four equivalent Mg(1)Mg12 cuboctahedra, corners with four equivalent Mg(2)Mg12 cuboctahedra, corners with four equivalent Mg(4)Mg12 cuboctahedra, corners with six equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, edges with two equivalent Na(1)Ce2Mg10 cuboctahedra, edges with two equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, edges with two equivalent Ce(1)Na2Mg10 cuboctahedra, edges with four equivalent Mg(6)CeMg11 cuboctahedra, edges with four equivalent Mg(5)NaCeMg10 cuboctahedra, edges with four equivalent Mg(7)NaMg11 cuboctahedra, faces with two equivalent Na(1)Ce2Mg10 cuboctahedra, faces with two equivalent Mg(6)CeMg11 cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, faces with two equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, faces with two equivalent Mg(7)NaMg11 cuboctahedra, faces with two equivalent Ce(1)Na2Mg10 cuboctahedra, and faces with eight equivalent Mg(5)NaCeMg10 cuboctahedra. In the fourth Mg site, Mg(4) is bonded to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(4), two equivalent Mg(5), two equivalent Mg(6), and two equivalent Mg(7) atoms to form MgMg12 cuboctahedra that share corners with four equivalent Na(1)Ce2Mg10 cuboctahedra, corners with four equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, corners with four equivalent Ce(1)Na2Mg10 cuboctahedra, corners with six equivalent Mg(4)Mg12 cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with two equivalent Mg(4)Mg12 cuboctahedra, edges with four equivalent Mg(6)CeMg11 cuboctahedra, edges with four equivalent Mg(5)NaCeMg10 cuboctahedra, edges with four equivalent Mg(7)NaMg11 cuboctahedra, faces with two equivalent Mg(6)CeMg11 cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, faces with two equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, faces with two equivalent Mg(7)NaMg11 cuboctahedra, and faces with eight equivalent Mg(5)NaCeMg10 cuboctahedra. In the fifth Mg site, Mg(5) is bonded to one Na(1), one Mg(1), one Mg(2), one Mg(3), one Mg(4), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), and one Ce(1) atom to form distorted MgNaCeMg10 cuboctahedra that share corners with four equivalent Mg(6)CeMg11 cuboctahedra, corners with four equivalent Mg(7)NaMg11 cuboctahedra, corners with ten equivalent Mg(5)NaCeMg10 cuboctahedra, edges with two equivalent Na(1)Ce2Mg10 cuboctahedra, edges with two equivalent Mg(6)CeMg11 cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with two equivalent Mg(4)Mg12 cuboctahedra, edges with two equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, edges with two equivalent Mg(5)NaCeMg10 cuboctahedra, edges with two equivalent Mg(7)NaMg11 cuboctahedra, edges with two equivalent Ce(1)Na2Mg10 cuboctahedra,  a faceface with one Na(1)Ce2Mg10 cuboctahedra,  a faceface with one Mg(1)Mg12 cuboctahedra,  a faceface with one Mg(2)Mg12 cuboctahedra,  a faceface with one Ce(1)Na2Mg10 cuboctahedra, faces with two equivalent Mg(6)CeMg11 cuboctahedra, faces with two equivalent Mg(7)NaMg11 cuboctahedra, faces with four equivalent Mg(4)Mg12 cuboctahedra, faces with four equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, and faces with four equivalent Mg(5)NaCeMg10 cuboctahedra. In the sixth Mg site, Mg(6) is bonded to one Mg(1), two equivalent Mg(3), two equivalent Mg(4), two equivalent Mg(7), four equivalent Mg(5), and one Ce(1) atom to form MgCeMg11 cuboctahedra that share corners with four equivalent Mg(7)NaMg11 cuboctahedra, corners with six equivalent Mg(6)CeMg11 cuboctahedra, corners with eight equivalent Mg(5)NaCeMg10 cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with two equivalent Mg(7)NaMg11 cuboctahedra, edges with two equivalent Ce(1)Na2Mg10 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with four equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, edges with four equivalent Mg(5)NaCeMg10 cuboctahedra,  a faceface with one Mg(1)Mg12 cuboctahedra,  a faceface with one Ce(1)Na2Mg10 cuboctahedra, faces with two equivalent Mg(6)CeMg11 cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, faces with two equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, faces with two equivalent Mg(7)NaMg11 cuboctahedra, faces with three equivalent Na(1)Ce2Mg10 cuboctahedra, faces with three equivalent Mg(2)Mg12 cuboctahedra, and faces with four equivalent Mg(5)NaCeMg10 cuboctahedra. In the seventh Mg site, Mg(7) is bonded to one Na(1), one Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent Mg(6), and four equivalent Mg(5) atoms to form distorted MgNaMg11 cuboctahedra that share corners with four equivalent Mg(6)CeMg11 cuboctahedra, corners with six equivalent Mg(7)NaMg11 cuboctahedra, corners with eight equivalent Mg(5)NaCeMg10 cuboctahedra, edges with two equivalent Na(1)Ce2Mg10 cuboctahedra, edges with two equivalent Mg(6)CeMg11 cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with four equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, edges with four equivalent Mg(5)NaCeMg10 cuboctahedra,  a faceface with one Na(1)Ce2Mg10 cuboctahedra,  a faceface with one Mg(2)Mg12 cuboctahedra, faces with two equivalent Mg(6)CeMg11 cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, faces with two equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, faces with two equivalent Mg(7)NaMg11 cuboctahedra, faces with three equivalent Mg(1)Mg12 cuboctahedra, faces with three equivalent Ce(1)Na2Mg10 cuboctahedra, and faces with four equivalent Mg(5)NaCeMg10 cuboctahedra. Ce(1) is bonded to two equivalent Na(1), two equivalent Mg(6), four equivalent Mg(3), and four equivalent Mg(5) atoms to form CeNa2Mg10 cuboctahedra that share corners with four equivalent Mg(2)Mg12 cuboctahedra, corners with six equivalent Ce(1)Na2Mg10 cuboctahedra, corners with eight equivalent Mg(4)Mg12 cuboctahedra, edges with two equivalent Na(1)Ce2Mg10 cuboctahedra, edges with four equivalent Mg(6)CeMg11 cuboctahedra, edges with four equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, edges with eight equivalent Mg(5)NaCeMg10 cuboctahedra, faces with two equivalent Na(1)Ce2Mg10 cuboctahedra, faces with two equivalent Mg(6)CeMg11 cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with four equivalent Mg(3)Na2Ce2Mg8 cuboctahedra, faces with four equivalent Mg(5)NaCeMg10 cuboctahedra, and faces with six equivalent Mg(7)NaMg11 cuboctahedra. is represented by the CIF file [CIF]
data_NaCeMg14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.605
_cell_length_b   6.499
_cell_length_c   10.455
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.473
_symmetry_Int_Tables_number   1
_cell_volume   390.681
_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
  Na  Na0  1  0.168  0.834  0.125  1.0
  Ce  Ce1  1  0.166  0.333  0.125  1.0
  Mg  Mg2  1  0.164  0.332  0.625  1.0
  Mg  Mg3  1  0.164  0.832  0.625  1.0
  Mg  Mg4  1  0.658  0.320  0.125  1.0
  Mg  Mg5  1  0.669  0.335  0.625  1.0
  Mg  Mg6  1  0.658  0.838  0.125  1.0
  Mg  Mg7  1  0.669  0.834  0.625  1.0
  Mg  Mg8  1  0.339  0.170  0.386  1.0
  Mg  Mg9  1  0.339  0.170  0.864  1.0
  Mg  Mg10  1  0.339  0.669  0.386  1.0
  Mg  Mg11  1  0.339  0.669  0.864  1.0
  Mg  Mg12  1  0.833  0.167  0.381  1.0
  Mg  Mg13  1  0.833  0.167  0.869  1.0
  Mg  Mg14  1  0.831  0.666  0.372  1.0
  Mg  Mg15  1  0.831  0.666  0.878  1.0
[/CIF]
.