The crystal structure described by Mg14YCr crystallizes in the orthorhombic Amm2 space group. 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 Cr(1)Y2Mg10 cuboctahedra, corners with six equivalent Mg(1)Mg12 cuboctahedra, corners with eight equivalent Mg(3)Y2Mg8Cr2 cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with four equivalent Mg(6)YMg11 cuboctahedra, edges with eight equivalent Mg(5)YMg10Cr cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, faces with two equivalent Mg(6)YMg11 cuboctahedra, faces with two equivalent Y(1)Mg10Cr2 cuboctahedra, faces with four equivalent Mg(4)Mg12 cuboctahedra, faces with four equivalent Mg(5)YMg10Cr cuboctahedra, and faces with six equivalent Mg(7)Mg11Cr 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 Y(1)Mg10Cr2 cuboctahedra, corners with six equivalent Mg(2)Mg12 cuboctahedra, corners with eight equivalent Mg(3)Y2Mg8Cr2 cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with four equivalent Mg(7)Mg11Cr cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with eight equivalent Mg(5)YMg10Cr cuboctahedra, faces with two equivalent Mg(7)Mg11Cr cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent Cr(1)Y2Mg10 cuboctahedra, faces with four equivalent Mg(4)Mg12 cuboctahedra, faces with four equivalent Mg(5)YMg10Cr cuboctahedra, and faces with six equivalent Mg(6)YMg11 cuboctahedra. In the third Mg site, Mg(3) is bonded to two equivalent Mg(3), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), two equivalent Y(1), and two equivalent Cr(1) atoms to form distorted MgY2Mg8Cr2 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)Y2Mg8Cr2 cuboctahedra, edges with two equivalent Mg(3)Y2Mg8Cr2 cuboctahedra, edges with two equivalent Y(1)Mg10Cr2 cuboctahedra, edges with two equivalent Cr(1)Y2Mg10 cuboctahedra, edges with four equivalent Mg(7)Mg11Cr cuboctahedra, edges with four equivalent Mg(5)YMg10Cr cuboctahedra, edges with four equivalent Mg(6)YMg11 cuboctahedra, faces with two equivalent Mg(7)Mg11Cr cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, faces with two equivalent Mg(3)Y2Mg8Cr2 cuboctahedra, faces with two equivalent Mg(6)YMg11 cuboctahedra, faces with two equivalent Y(1)Mg10Cr2 cuboctahedra, faces with two equivalent Cr(1)Y2Mg10 cuboctahedra, and faces with eight equivalent Mg(5)YMg10Cr 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 Mg(3)Y2Mg8Cr2 cuboctahedra, corners with four equivalent Y(1)Mg10Cr2 cuboctahedra, corners with four equivalent Cr(1)Y2Mg10 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(7)Mg11Cr cuboctahedra, edges with four equivalent Mg(5)YMg10Cr cuboctahedra, edges with four equivalent Mg(6)YMg11 cuboctahedra, faces with two equivalent Mg(7)Mg11Cr 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)Y2Mg8Cr2 cuboctahedra, faces with two equivalent Mg(6)YMg11 cuboctahedra, and faces with eight equivalent Mg(5)YMg10Cr cuboctahedra. In the fifth Mg site, Mg(5) is bonded to one Mg(1), one Mg(2), one Mg(3), one Mg(4), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), one Y(1), and one Cr(1) atom to form distorted MgYMg10Cr cuboctahedra that share corners with four equivalent Mg(7)Mg11Cr cuboctahedra, corners with four equivalent Mg(6)YMg11 cuboctahedra, corners with ten equivalent Mg(5)YMg10Cr cuboctahedra, edges with two equivalent Mg(7)Mg11Cr 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)Y2Mg8Cr2 cuboctahedra, edges with two equivalent Mg(5)YMg10Cr cuboctahedra, edges with two equivalent Mg(6)YMg11 cuboctahedra, edges with two equivalent Y(1)Mg10Cr2 cuboctahedra, edges with two equivalent Cr(1)Y2Mg10 cuboctahedra,  a faceface with one Mg(1)Mg12 cuboctahedra,  a faceface with one Mg(2)Mg12 cuboctahedra,  a faceface with one Y(1)Mg10Cr2 cuboctahedra,  a faceface with one Cr(1)Y2Mg10 cuboctahedra, faces with two equivalent Mg(7)Mg11Cr cuboctahedra, faces with two equivalent Mg(6)YMg11 cuboctahedra, faces with four equivalent Mg(4)Mg12 cuboctahedra, faces with four equivalent Mg(3)Y2Mg8Cr2 cuboctahedra, and faces with four equivalent Mg(5)YMg10Cr 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 Y(1) atom to form MgYMg11 cuboctahedra that share corners with four equivalent Mg(7)Mg11Cr cuboctahedra, corners with six equivalent Mg(6)YMg11 cuboctahedra, corners with eight equivalent Mg(5)YMg10Cr cuboctahedra, edges with two equivalent Mg(7)Mg11Cr cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with two equivalent Y(1)Mg10Cr2 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with four equivalent Mg(3)Y2Mg8Cr2 cuboctahedra, edges with four equivalent Mg(5)YMg10Cr cuboctahedra,  a faceface with one Mg(1)Mg12 cuboctahedra,  a faceface with one Y(1)Mg10Cr2 cuboctahedra, faces with two equivalent Mg(7)Mg11Cr cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, faces with two equivalent Mg(3)Y2Mg8Cr2 cuboctahedra, faces with two equivalent Mg(6)YMg11 cuboctahedra, faces with three equivalent Mg(2)Mg12 cuboctahedra, faces with three equivalent Cr(1)Y2Mg10 cuboctahedra, and faces with four equivalent Mg(5)YMg10Cr cuboctahedra. In the seventh Mg site, Mg(7) is bonded to one Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent Mg(6), four equivalent Mg(5), and one Cr(1) atom to form distorted MgMg11Cr cuboctahedra that share corners with four equivalent Mg(6)YMg11 cuboctahedra, corners with six equivalent Mg(7)Mg11Cr cuboctahedra, corners with eight equivalent Mg(5)YMg10Cr cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with two equivalent Mg(6)YMg11 cuboctahedra, edges with two equivalent Cr(1)Y2Mg10 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with four equivalent Mg(3)Y2Mg8Cr2 cuboctahedra, edges with four equivalent Mg(5)YMg10Cr cuboctahedra,  a faceface with one Mg(2)Mg12 cuboctahedra,  a faceface with one Cr(1)Y2Mg10 cuboctahedra, faces with two equivalent Mg(7)Mg11Cr cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, faces with two equivalent Mg(3)Y2Mg8Cr2 cuboctahedra, faces with two equivalent Mg(6)YMg11 cuboctahedra, faces with three equivalent Mg(1)Mg12 cuboctahedra, faces with three equivalent Y(1)Mg10Cr2 cuboctahedra, and faces with four equivalent Mg(5)YMg10Cr cuboctahedra. Y(1) is bonded to two equivalent Mg(6), four equivalent Mg(3), four equivalent Mg(5), and two equivalent Cr(1) atoms to form YMg10Cr2 cuboctahedra that share corners with four equivalent Mg(2)Mg12 cuboctahedra, corners with six equivalent Y(1)Mg10Cr2 cuboctahedra, corners with eight equivalent Mg(4)Mg12 cuboctahedra, edges with two equivalent Cr(1)Y2Mg10 cuboctahedra, edges with four equivalent Mg(3)Y2Mg8Cr2 cuboctahedra, edges with four equivalent Mg(6)YMg11 cuboctahedra, edges with eight equivalent Mg(5)YMg10Cr cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent Mg(6)YMg11 cuboctahedra, faces with two equivalent Cr(1)Y2Mg10 cuboctahedra, faces with four equivalent Mg(3)Y2Mg8Cr2 cuboctahedra, faces with four equivalent Mg(5)YMg10Cr cuboctahedra, and faces with six equivalent Mg(7)Mg11Cr cuboctahedra. Cr(1) is bonded to two equivalent Mg(7), four equivalent Mg(3), four equivalent Mg(5), and two equivalent Y(1) atoms to form CrY2Mg10 cuboctahedra that share corners with four equivalent Mg(1)Mg12 cuboctahedra, corners with six equivalent Cr(1)Y2Mg10 cuboctahedra, corners with eight equivalent Mg(4)Mg12 cuboctahedra, edges with two equivalent Y(1)Mg10Cr2 cuboctahedra, edges with four equivalent Mg(7)Mg11Cr cuboctahedra, edges with four equivalent Mg(3)Y2Mg8Cr2 cuboctahedra, edges with eight equivalent Mg(5)YMg10Cr cuboctahedra, faces with two equivalent Mg(7)Mg11Cr cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, faces with two equivalent Y(1)Mg10Cr2 cuboctahedra, faces with four equivalent Mg(3)Y2Mg8Cr2 cuboctahedra, faces with four equivalent Mg(5)YMg10Cr cuboctahedra, and faces with six equivalent Mg(6)YMg11 cuboctahedra. is represented by the CIF file [CIF]
data_YMg14Cr
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.455
_cell_length_b   6.369
_cell_length_c   10.303
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.560
_symmetry_Int_Tables_number   1
_cell_volume   368.406
_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
  Y  Y0  1  0.162  0.331  0.125  1.0
  Mg  Mg1  1  0.166  0.333  0.625  1.0
  Mg  Mg2  1  0.165  0.833  0.625  1.0
  Mg  Mg3  1  0.659  0.322  0.125  1.0
  Mg  Mg4  1  0.667  0.334  0.625  1.0
  Mg  Mg5  1  0.659  0.837  0.125  1.0
  Mg  Mg6  1  0.667  0.832  0.625  1.0
  Mg  Mg7  1  0.334  0.162  0.376  1.0
  Mg  Mg8  1  0.334  0.162  0.874  1.0
  Mg  Mg9  1  0.334  0.672  0.376  1.0
  Mg  Mg10  1  0.334  0.672  0.874  1.0
  Mg  Mg11  1  0.833  0.166  0.381  1.0
  Mg  Mg12  1  0.833  0.166  0.869  1.0
  Mg  Mg13  1  0.840  0.670  0.366  1.0
  Mg  Mg14  1  0.840  0.670  0.884  1.0
  Cr  Cr15  1  0.173  0.836  0.125  1.0
[/CIF]
.
The crystal structure described by Mg14YCr crystallizes in the orthorhombic Amm2 space group. 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 Cr(1)Y2Mg10 cuboctahedra, corners with six equivalent Mg(1)Mg12 cuboctahedra, corners with eight equivalent Mg(3)Y2Mg8Cr2 cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with four equivalent Mg(6)YMg11 cuboctahedra, edges with eight equivalent Mg(5)YMg10Cr cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, faces with two equivalent Mg(6)YMg11 cuboctahedra, faces with two equivalent Y(1)Mg10Cr2 cuboctahedra, faces with four equivalent Mg(4)Mg12 cuboctahedra, faces with four equivalent Mg(5)YMg10Cr cuboctahedra, and faces with six equivalent Mg(7)Mg11Cr 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 Y(1)Mg10Cr2 cuboctahedra, corners with six equivalent Mg(2)Mg12 cuboctahedra, corners with eight equivalent Mg(3)Y2Mg8Cr2 cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with four equivalent Mg(7)Mg11Cr cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with eight equivalent Mg(5)YMg10Cr cuboctahedra, faces with two equivalent Mg(7)Mg11Cr cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent Cr(1)Y2Mg10 cuboctahedra, faces with four equivalent Mg(4)Mg12 cuboctahedra, faces with four equivalent Mg(5)YMg10Cr cuboctahedra, and faces with six equivalent Mg(6)YMg11 cuboctahedra. In the third Mg site, Mg(3) is bonded to two equivalent Mg(3), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), two equivalent Y(1), and two equivalent Cr(1) atoms to form distorted MgY2Mg8Cr2 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)Y2Mg8Cr2 cuboctahedra, edges with two equivalent Mg(3)Y2Mg8Cr2 cuboctahedra, edges with two equivalent Y(1)Mg10Cr2 cuboctahedra, edges with two equivalent Cr(1)Y2Mg10 cuboctahedra, edges with four equivalent Mg(7)Mg11Cr cuboctahedra, edges with four equivalent Mg(5)YMg10Cr cuboctahedra, edges with four equivalent Mg(6)YMg11 cuboctahedra, faces with two equivalent Mg(7)Mg11Cr cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, faces with two equivalent Mg(3)Y2Mg8Cr2 cuboctahedra, faces with two equivalent Mg(6)YMg11 cuboctahedra, faces with two equivalent Y(1)Mg10Cr2 cuboctahedra, faces with two equivalent Cr(1)Y2Mg10 cuboctahedra, and faces with eight equivalent Mg(5)YMg10Cr 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 Mg(3)Y2Mg8Cr2 cuboctahedra, corners with four equivalent Y(1)Mg10Cr2 cuboctahedra, corners with four equivalent Cr(1)Y2Mg10 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(7)Mg11Cr cuboctahedra, edges with four equivalent Mg(5)YMg10Cr cuboctahedra, edges with four equivalent Mg(6)YMg11 cuboctahedra, faces with two equivalent Mg(7)Mg11Cr 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)Y2Mg8Cr2 cuboctahedra, faces with two equivalent Mg(6)YMg11 cuboctahedra, and faces with eight equivalent Mg(5)YMg10Cr cuboctahedra. In the fifth Mg site, Mg(5) is bonded to one Mg(1), one Mg(2), one Mg(3), one Mg(4), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), one Y(1), and one Cr(1) atom to form distorted MgYMg10Cr cuboctahedra that share corners with four equivalent Mg(7)Mg11Cr cuboctahedra, corners with four equivalent Mg(6)YMg11 cuboctahedra, corners with ten equivalent Mg(5)YMg10Cr cuboctahedra, edges with two equivalent Mg(7)Mg11Cr 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)Y2Mg8Cr2 cuboctahedra, edges with two equivalent Mg(5)YMg10Cr cuboctahedra, edges with two equivalent Mg(6)YMg11 cuboctahedra, edges with two equivalent Y(1)Mg10Cr2 cuboctahedra, edges with two equivalent Cr(1)Y2Mg10 cuboctahedra,  a faceface with one Mg(1)Mg12 cuboctahedra,  a faceface with one Mg(2)Mg12 cuboctahedra,  a faceface with one Y(1)Mg10Cr2 cuboctahedra,  a faceface with one Cr(1)Y2Mg10 cuboctahedra, faces with two equivalent Mg(7)Mg11Cr cuboctahedra, faces with two equivalent Mg(6)YMg11 cuboctahedra, faces with four equivalent Mg(4)Mg12 cuboctahedra, faces with four equivalent Mg(3)Y2Mg8Cr2 cuboctahedra, and faces with four equivalent Mg(5)YMg10Cr 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 Y(1) atom to form MgYMg11 cuboctahedra that share corners with four equivalent Mg(7)Mg11Cr cuboctahedra, corners with six equivalent Mg(6)YMg11 cuboctahedra, corners with eight equivalent Mg(5)YMg10Cr cuboctahedra, edges with two equivalent Mg(7)Mg11Cr cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with two equivalent Y(1)Mg10Cr2 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with four equivalent Mg(3)Y2Mg8Cr2 cuboctahedra, edges with four equivalent Mg(5)YMg10Cr cuboctahedra,  a faceface with one Mg(1)Mg12 cuboctahedra,  a faceface with one Y(1)Mg10Cr2 cuboctahedra, faces with two equivalent Mg(7)Mg11Cr cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, faces with two equivalent Mg(3)Y2Mg8Cr2 cuboctahedra, faces with two equivalent Mg(6)YMg11 cuboctahedra, faces with three equivalent Mg(2)Mg12 cuboctahedra, faces with three equivalent Cr(1)Y2Mg10 cuboctahedra, and faces with four equivalent Mg(5)YMg10Cr cuboctahedra. In the seventh Mg site, Mg(7) is bonded to one Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent Mg(6), four equivalent Mg(5), and one Cr(1) atom to form distorted MgMg11Cr cuboctahedra that share corners with four equivalent Mg(6)YMg11 cuboctahedra, corners with six equivalent Mg(7)Mg11Cr cuboctahedra, corners with eight equivalent Mg(5)YMg10Cr cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with two equivalent Mg(6)YMg11 cuboctahedra, edges with two equivalent Cr(1)Y2Mg10 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with four equivalent Mg(3)Y2Mg8Cr2 cuboctahedra, edges with four equivalent Mg(5)YMg10Cr cuboctahedra,  a faceface with one Mg(2)Mg12 cuboctahedra,  a faceface with one Cr(1)Y2Mg10 cuboctahedra, faces with two equivalent Mg(7)Mg11Cr cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, faces with two equivalent Mg(3)Y2Mg8Cr2 cuboctahedra, faces with two equivalent Mg(6)YMg11 cuboctahedra, faces with three equivalent Mg(1)Mg12 cuboctahedra, faces with three equivalent Y(1)Mg10Cr2 cuboctahedra, and faces with four equivalent Mg(5)YMg10Cr cuboctahedra. Y(1) is bonded to two equivalent Mg(6), four equivalent Mg(3), four equivalent Mg(5), and two equivalent Cr(1) atoms to form YMg10Cr2 cuboctahedra that share corners with four equivalent Mg(2)Mg12 cuboctahedra, corners with six equivalent Y(1)Mg10Cr2 cuboctahedra, corners with eight equivalent Mg(4)Mg12 cuboctahedra, edges with two equivalent Cr(1)Y2Mg10 cuboctahedra, edges with four equivalent Mg(3)Y2Mg8Cr2 cuboctahedra, edges with four equivalent Mg(6)YMg11 cuboctahedra, edges with eight equivalent Mg(5)YMg10Cr cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent Mg(6)YMg11 cuboctahedra, faces with two equivalent Cr(1)Y2Mg10 cuboctahedra, faces with four equivalent Mg(3)Y2Mg8Cr2 cuboctahedra, faces with four equivalent Mg(5)YMg10Cr cuboctahedra, and faces with six equivalent Mg(7)Mg11Cr cuboctahedra. Cr(1) is bonded to two equivalent Mg(7), four equivalent Mg(3), four equivalent Mg(5), and two equivalent Y(1) atoms to form CrY2Mg10 cuboctahedra that share corners with four equivalent Mg(1)Mg12 cuboctahedra, corners with six equivalent Cr(1)Y2Mg10 cuboctahedra, corners with eight equivalent Mg(4)Mg12 cuboctahedra, edges with two equivalent Y(1)Mg10Cr2 cuboctahedra, edges with four equivalent Mg(7)Mg11Cr cuboctahedra, edges with four equivalent Mg(3)Y2Mg8Cr2 cuboctahedra, edges with eight equivalent Mg(5)YMg10Cr cuboctahedra, faces with two equivalent Mg(7)Mg11Cr cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, faces with two equivalent Y(1)Mg10Cr2 cuboctahedra, faces with four equivalent Mg(3)Y2Mg8Cr2 cuboctahedra, faces with four equivalent Mg(5)YMg10Cr cuboctahedra, and faces with six equivalent Mg(6)YMg11 cuboctahedra. is represented by the CIF file [CIF]
data_YMg14Cr
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.455
_cell_length_b   6.369
_cell_length_c   10.303
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.560
_symmetry_Int_Tables_number   1
_cell_volume   368.406
_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
  Y  Y0  1  0.162  0.331  0.125  1.0
  Mg  Mg1  1  0.166  0.333  0.625  1.0
  Mg  Mg2  1  0.165  0.833  0.625  1.0
  Mg  Mg3  1  0.659  0.322  0.125  1.0
  Mg  Mg4  1  0.667  0.334  0.625  1.0
  Mg  Mg5  1  0.659  0.837  0.125  1.0
  Mg  Mg6  1  0.667  0.832  0.625  1.0
  Mg  Mg7  1  0.334  0.162  0.376  1.0
  Mg  Mg8  1  0.334  0.162  0.874  1.0
  Mg  Mg9  1  0.334  0.672  0.376  1.0
  Mg  Mg10  1  0.334  0.672  0.874  1.0
  Mg  Mg11  1  0.833  0.166  0.381  1.0
  Mg  Mg12  1  0.833  0.166  0.869  1.0
  Mg  Mg13  1  0.840  0.670  0.366  1.0
  Mg  Mg14  1  0.840  0.670  0.884  1.0
  Cr  Cr15  1  0.173  0.836  0.125  1.0
[/CIF]
.