The crystal structure described by Mg14AlSi crystallizes in the orthorhombic Amm2 space group. There are nine inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to two equivalent Mg(2); two equivalent Mg(6); four Mg(4,4); and four Mg(5,5) atoms to form MgMg12 cuboctahedra that share corners with six equivalent Mg(1)Mg12 cuboctahedra; corners with eight equivalent Mg(3)Mg8Al2Si2 cuboctahedra; edges with two equivalent Mg(2)Mg12 cuboctahedra; edges with four equivalent Mg(6)Mg11Al cuboctahedra; edges with four Mg(4,4)Mg12 cuboctahedra; edges with eight Mg(5,5)Mg10AlSi cuboctahedra; faces with two equivalent Mg(6)Mg11Al cuboctahedra; faces with two equivalent Mg(2)Mg12 cuboctahedra; faces with four Mg(5,5)Mg10AlSi cuboctahedra; faces with four Mg(4,4)Mg12 cuboctahedra; and faces with six equivalent Mg(7)Mg11Si cuboctahedra. In the second Mg site, Mg(2) is bonded to two equivalent Mg(1); two equivalent Mg(7); four Mg(4,4); and four Mg(5,5) atoms to form MgMg12 cuboctahedra that share corners with six equivalent Mg(2)Mg12 cuboctahedra; corners with eight equivalent Mg(3)Mg8Al2Si2 cuboctahedra; edges with two equivalent Mg(1)Mg12 cuboctahedra; edges with four equivalent Mg(7)Mg11Si cuboctahedra; edges with four Mg(4,4)Mg12 cuboctahedra; edges with eight Mg(5,5)Mg10AlSi cuboctahedra; faces with two equivalent Mg(7)Mg11Si cuboctahedra; faces with two equivalent Mg(1)Mg12 cuboctahedra; faces with four Mg(5,5)Mg10AlSi cuboctahedra; faces with four Mg(4,4)Mg12 cuboctahedra; and faces with six equivalent Mg(6)Mg11Al cuboctahedra. In the third Mg site, Mg(3) is bonded to two equivalent Mg(3); two Mg(5,5); two equivalent Mg(6); two equivalent Mg(7); two equivalent Al(1); and two equivalent Si(1) atoms to form distorted MgMg8Al2Si2 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)Mg8Al2Si2 cuboctahedra; edges with two equivalent Mg(3)Mg8Al2Si2 cuboctahedra; edges with four equivalent Mg(5)Mg10AlSi cuboctahedra; edges with four equivalent Mg(6)Mg11Al cuboctahedra; edges with four equivalent Mg(7)Mg11Si cuboctahedra; faces with two equivalent Mg(6)Mg11Al cuboctahedra; faces with two equivalent Mg(7)Mg11Si cuboctahedra; faces with two equivalent Mg(4)Mg12 cuboctahedra; faces with two equivalent Mg(3)Mg8Al2Si2 cuboctahedra; and faces with eight Mg(5,5)Mg10AlSi cuboctahedra. In the fourth Mg site, Mg(4) is bonded to two equivalent Mg(1); two equivalent Mg(2); two equivalent Mg(4); two Mg(5,5); two equivalent Mg(6); and two equivalent Mg(7) atoms to form MgMg12 cuboctahedra that share corners with four equivalent Mg(3)Mg8Al2Si2 cuboctahedra; corners with six Mg(4,4)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(5)Mg10AlSi cuboctahedra; edges with four equivalent Mg(6)Mg11Al cuboctahedra; edges with four equivalent Mg(7)Mg11Si cuboctahedra; faces with two equivalent Mg(6)Mg11Al cuboctahedra; faces with two equivalent Mg(7)Mg11Si 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)Mg8Al2Si2 cuboctahedra; and faces with eight Mg(5,5)Mg10AlSi cuboctahedra. In the fifth 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)Mg8Al2Si2 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(5)Mg10AlSi cuboctahedra; edges with four equivalent Mg(6)Mg11Al cuboctahedra; edges with four equivalent Mg(7)Mg11Si cuboctahedra; faces with two equivalent Mg(6)Mg11Al cuboctahedra; faces with two equivalent Mg(7)Mg11Si 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)Mg8Al2Si2 cuboctahedra; and faces with eight Mg(5,5)Mg10AlSi cuboctahedra. In the sixth 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 Al(1), and one Si(1) atom to form distorted MgMg10AlSi cuboctahedra that share corners with four equivalent Mg(6)Mg11Al cuboctahedra; corners with four equivalent Mg(7)Mg11Si cuboctahedra; corners with ten Mg(5,5)Mg10AlSi cuboctahedra; edges with two equivalent Mg(5)Mg10AlSi cuboctahedra; edges with two equivalent Mg(6)Mg11Al cuboctahedra; edges with two equivalent Mg(7)Mg11Si 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)Mg8Al2Si2 cuboctahedra;  a faceface with one Mg(1)Mg12 cuboctahedra;  a faceface with one Mg(2)Mg12 cuboctahedra; faces with two equivalent Mg(6)Mg11Al cuboctahedra; faces with two equivalent Mg(7)Mg11Si cuboctahedra; faces with four equivalent Mg(5)Mg10AlSi cuboctahedra; faces with four Mg(4,4)Mg12 cuboctahedra; and faces with four equivalent Mg(3)Mg8Al2Si2 cuboctahedra. In the seventh 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 Al(1), and one Si(1) atom to form distorted MgMg10AlSi cuboctahedra that share corners with four equivalent Mg(6)Mg11Al cuboctahedra; corners with four equivalent Mg(7)Mg11Si cuboctahedra; corners with ten Mg(5,5)Mg10AlSi cuboctahedra; edges with two equivalent Mg(5)Mg10AlSi cuboctahedra; edges with two equivalent Mg(6)Mg11Al cuboctahedra; edges with two equivalent Mg(7)Mg11Si 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)Mg8Al2Si2 cuboctahedra;  a faceface with one Mg(1)Mg12 cuboctahedra;  a faceface with one Mg(2)Mg12 cuboctahedra; faces with two equivalent Mg(6)Mg11Al cuboctahedra; faces with two equivalent Mg(7)Mg11Si cuboctahedra; faces with four Mg(5,5)Mg10AlSi cuboctahedra; faces with four Mg(4,4)Mg12 cuboctahedra; and faces with four equivalent Mg(3)Mg8Al2Si2 cuboctahedra. In the eighth Mg site, Mg(6) is bonded to one Mg(1); two equivalent Mg(3); two Mg(4,4); two equivalent Mg(7); four Mg(5,5); and one Al(1) atom to form distorted MgMg11Al cuboctahedra that share corners with four equivalent Mg(7)Mg11Si cuboctahedra; corners with six equivalent Mg(6)Mg11Al cuboctahedra; corners with eight Mg(5,5)Mg10AlSi cuboctahedra; edges with two equivalent Mg(7)Mg11Si cuboctahedra; edges with two equivalent Mg(1)Mg12 cuboctahedra; edges with four Mg(5,5)Mg10AlSi cuboctahedra; edges with four Mg(4,4)Mg12 cuboctahedra; edges with four equivalent Mg(3)Mg8Al2Si2 cuboctahedra;  a faceface with one Mg(1)Mg12 cuboctahedra; faces with two equivalent Mg(6)Mg11Al cuboctahedra; faces with two equivalent Mg(7)Mg11Si cuboctahedra; faces with two Mg(4,4)Mg12 cuboctahedra; faces with two equivalent Mg(3)Mg8Al2Si2 cuboctahedra; faces with three equivalent Mg(2)Mg12 cuboctahedra; and faces with four Mg(5,5)Mg10AlSi cuboctahedra. In the ninth Mg site, Mg(7) is bonded to one Mg(2); two equivalent Mg(3); two Mg(4,4); two equivalent Mg(6); four Mg(5,5); and one Si(1) atom to form distorted MgMg11Si cuboctahedra that share corners with four equivalent Mg(6)Mg11Al cuboctahedra; corners with six equivalent Mg(7)Mg11Si cuboctahedra; corners with eight Mg(5,5)Mg10AlSi cuboctahedra; edges with two equivalent Mg(6)Mg11Al cuboctahedra; edges with two equivalent Mg(2)Mg12 cuboctahedra; edges with four Mg(5,5)Mg10AlSi cuboctahedra; edges with four Mg(4,4)Mg12 cuboctahedra; edges with four equivalent Mg(3)Mg8Al2Si2 cuboctahedra;  a faceface with one Mg(2)Mg12 cuboctahedra; faces with two equivalent Mg(6)Mg11Al cuboctahedra; faces with two equivalent Mg(7)Mg11Si cuboctahedra; faces with two Mg(4,4)Mg12 cuboctahedra; faces with two equivalent Mg(3)Mg8Al2Si2 cuboctahedra; faces with three equivalent Mg(1)Mg12 cuboctahedra; and faces with four Mg(5,5)Mg10AlSi cuboctahedra. Al(1) is bonded in a 10-coordinate geometry to two equivalent Mg(6); four equivalent Mg(3); and four Mg(5,5) atoms. Si(1) is bonded in a 10-coordinate geometry to two equivalent Mg(7); four equivalent Mg(3); and four Mg(5,5) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mg14AlSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.237
_cell_length_b   6.367
_cell_length_c   10.185
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.691
_symmetry_Int_Tables_number   1
_cell_volume   347.850
_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  0.169  0.335  0.625  1.0
  Mg  Mg1  1  0.168  0.834  0.625  1.0
  Mg  Mg2  1  0.670  0.334  0.125  1.0
  Mg  Mg3  1  0.666  0.334  0.625  1.0
  Mg  Mg4  1  0.670  0.836  0.125  1.0
  Mg  Mg5  1  0.666  0.832  0.625  1.0
  Mg  Mg6  1  0.329  0.164  0.366  1.0
  Mg  Mg7  1  0.329  0.164  0.884  1.0
  Mg  Mg8  1  0.329  0.665  0.366  1.0
  Mg  Mg9  1  0.329  0.665  0.884  1.0
  Mg  Mg10  1  0.837  0.168  0.374  1.0
  Mg  Mg11  1  0.837  0.168  0.876  1.0
  Mg  Mg12  1  0.838  0.669  0.371  1.0
  Mg  Mg13  1  0.838  0.669  0.879  1.0
  Al  Al14  1  0.161  0.331  0.125  1.0
  Si  Si15  1  0.165  0.833  0.125  1.0
[/CIF]
.
The crystal structure described by Mg14AlSi crystallizes in the orthorhombic Amm2 space group. There are nine inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to two equivalent Mg(2); two equivalent Mg(6); four Mg(4,4); and four Mg(5,5) atoms to form MgMg12 cuboctahedra that share corners with six equivalent Mg(1)Mg12 cuboctahedra; corners with eight equivalent Mg(3)Mg8Al2Si2 cuboctahedra; edges with two equivalent Mg(2)Mg12 cuboctahedra; edges with four equivalent Mg(6)Mg11Al cuboctahedra; edges with four Mg(4,4)Mg12 cuboctahedra; edges with eight Mg(5,5)Mg10AlSi cuboctahedra; faces with two equivalent Mg(6)Mg11Al cuboctahedra; faces with two equivalent Mg(2)Mg12 cuboctahedra; faces with four Mg(5,5)Mg10AlSi cuboctahedra; faces with four Mg(4,4)Mg12 cuboctahedra; and faces with six equivalent Mg(7)Mg11Si cuboctahedra. In the second Mg site, Mg(2) is bonded to two equivalent Mg(1); two equivalent Mg(7); four Mg(4,4); and four Mg(5,5) atoms to form MgMg12 cuboctahedra that share corners with six equivalent Mg(2)Mg12 cuboctahedra; corners with eight equivalent Mg(3)Mg8Al2Si2 cuboctahedra; edges with two equivalent Mg(1)Mg12 cuboctahedra; edges with four equivalent Mg(7)Mg11Si cuboctahedra; edges with four Mg(4,4)Mg12 cuboctahedra; edges with eight Mg(5,5)Mg10AlSi cuboctahedra; faces with two equivalent Mg(7)Mg11Si cuboctahedra; faces with two equivalent Mg(1)Mg12 cuboctahedra; faces with four Mg(5,5)Mg10AlSi cuboctahedra; faces with four Mg(4,4)Mg12 cuboctahedra; and faces with six equivalent Mg(6)Mg11Al cuboctahedra. In the third Mg site, Mg(3) is bonded to two equivalent Mg(3); two Mg(5,5); two equivalent Mg(6); two equivalent Mg(7); two equivalent Al(1); and two equivalent Si(1) atoms to form distorted MgMg8Al2Si2 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)Mg8Al2Si2 cuboctahedra; edges with two equivalent Mg(3)Mg8Al2Si2 cuboctahedra; edges with four equivalent Mg(5)Mg10AlSi cuboctahedra; edges with four equivalent Mg(6)Mg11Al cuboctahedra; edges with four equivalent Mg(7)Mg11Si cuboctahedra; faces with two equivalent Mg(6)Mg11Al cuboctahedra; faces with two equivalent Mg(7)Mg11Si cuboctahedra; faces with two equivalent Mg(4)Mg12 cuboctahedra; faces with two equivalent Mg(3)Mg8Al2Si2 cuboctahedra; and faces with eight Mg(5,5)Mg10AlSi cuboctahedra. In the fourth Mg site, Mg(4) is bonded to two equivalent Mg(1); two equivalent Mg(2); two equivalent Mg(4); two Mg(5,5); two equivalent Mg(6); and two equivalent Mg(7) atoms to form MgMg12 cuboctahedra that share corners with four equivalent Mg(3)Mg8Al2Si2 cuboctahedra; corners with six Mg(4,4)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(5)Mg10AlSi cuboctahedra; edges with four equivalent Mg(6)Mg11Al cuboctahedra; edges with four equivalent Mg(7)Mg11Si cuboctahedra; faces with two equivalent Mg(6)Mg11Al cuboctahedra; faces with two equivalent Mg(7)Mg11Si 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)Mg8Al2Si2 cuboctahedra; and faces with eight Mg(5,5)Mg10AlSi cuboctahedra. In the fifth 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)Mg8Al2Si2 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(5)Mg10AlSi cuboctahedra; edges with four equivalent Mg(6)Mg11Al cuboctahedra; edges with four equivalent Mg(7)Mg11Si cuboctahedra; faces with two equivalent Mg(6)Mg11Al cuboctahedra; faces with two equivalent Mg(7)Mg11Si 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)Mg8Al2Si2 cuboctahedra; and faces with eight Mg(5,5)Mg10AlSi cuboctahedra. In the sixth 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 Al(1), and one Si(1) atom to form distorted MgMg10AlSi cuboctahedra that share corners with four equivalent Mg(6)Mg11Al cuboctahedra; corners with four equivalent Mg(7)Mg11Si cuboctahedra; corners with ten Mg(5,5)Mg10AlSi cuboctahedra; edges with two equivalent Mg(5)Mg10AlSi cuboctahedra; edges with two equivalent Mg(6)Mg11Al cuboctahedra; edges with two equivalent Mg(7)Mg11Si 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)Mg8Al2Si2 cuboctahedra;  a faceface with one Mg(1)Mg12 cuboctahedra;  a faceface with one Mg(2)Mg12 cuboctahedra; faces with two equivalent Mg(6)Mg11Al cuboctahedra; faces with two equivalent Mg(7)Mg11Si cuboctahedra; faces with four equivalent Mg(5)Mg10AlSi cuboctahedra; faces with four Mg(4,4)Mg12 cuboctahedra; and faces with four equivalent Mg(3)Mg8Al2Si2 cuboctahedra. In the seventh 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 Al(1), and one Si(1) atom to form distorted MgMg10AlSi cuboctahedra that share corners with four equivalent Mg(6)Mg11Al cuboctahedra; corners with four equivalent Mg(7)Mg11Si cuboctahedra; corners with ten Mg(5,5)Mg10AlSi cuboctahedra; edges with two equivalent Mg(5)Mg10AlSi cuboctahedra; edges with two equivalent Mg(6)Mg11Al cuboctahedra; edges with two equivalent Mg(7)Mg11Si 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)Mg8Al2Si2 cuboctahedra;  a faceface with one Mg(1)Mg12 cuboctahedra;  a faceface with one Mg(2)Mg12 cuboctahedra; faces with two equivalent Mg(6)Mg11Al cuboctahedra; faces with two equivalent Mg(7)Mg11Si cuboctahedra; faces with four Mg(5,5)Mg10AlSi cuboctahedra; faces with four Mg(4,4)Mg12 cuboctahedra; and faces with four equivalent Mg(3)Mg8Al2Si2 cuboctahedra. In the eighth Mg site, Mg(6) is bonded to one Mg(1); two equivalent Mg(3); two Mg(4,4); two equivalent Mg(7); four Mg(5,5); and one Al(1) atom to form distorted MgMg11Al cuboctahedra that share corners with four equivalent Mg(7)Mg11Si cuboctahedra; corners with six equivalent Mg(6)Mg11Al cuboctahedra; corners with eight Mg(5,5)Mg10AlSi cuboctahedra; edges with two equivalent Mg(7)Mg11Si cuboctahedra; edges with two equivalent Mg(1)Mg12 cuboctahedra; edges with four Mg(5,5)Mg10AlSi cuboctahedra; edges with four Mg(4,4)Mg12 cuboctahedra; edges with four equivalent Mg(3)Mg8Al2Si2 cuboctahedra;  a faceface with one Mg(1)Mg12 cuboctahedra; faces with two equivalent Mg(6)Mg11Al cuboctahedra; faces with two equivalent Mg(7)Mg11Si cuboctahedra; faces with two Mg(4,4)Mg12 cuboctahedra; faces with two equivalent Mg(3)Mg8Al2Si2 cuboctahedra; faces with three equivalent Mg(2)Mg12 cuboctahedra; and faces with four Mg(5,5)Mg10AlSi cuboctahedra. In the ninth Mg site, Mg(7) is bonded to one Mg(2); two equivalent Mg(3); two Mg(4,4); two equivalent Mg(6); four Mg(5,5); and one Si(1) atom to form distorted MgMg11Si cuboctahedra that share corners with four equivalent Mg(6)Mg11Al cuboctahedra; corners with six equivalent Mg(7)Mg11Si cuboctahedra; corners with eight Mg(5,5)Mg10AlSi cuboctahedra; edges with two equivalent Mg(6)Mg11Al cuboctahedra; edges with two equivalent Mg(2)Mg12 cuboctahedra; edges with four Mg(5,5)Mg10AlSi cuboctahedra; edges with four Mg(4,4)Mg12 cuboctahedra; edges with four equivalent Mg(3)Mg8Al2Si2 cuboctahedra;  a faceface with one Mg(2)Mg12 cuboctahedra; faces with two equivalent Mg(6)Mg11Al cuboctahedra; faces with two equivalent Mg(7)Mg11Si cuboctahedra; faces with two Mg(4,4)Mg12 cuboctahedra; faces with two equivalent Mg(3)Mg8Al2Si2 cuboctahedra; faces with three equivalent Mg(1)Mg12 cuboctahedra; and faces with four Mg(5,5)Mg10AlSi cuboctahedra. Al(1) is bonded in a 10-coordinate geometry to two equivalent Mg(6); four equivalent Mg(3); and four Mg(5,5) atoms. Si(1) is bonded in a 10-coordinate geometry to two equivalent Mg(7); four equivalent Mg(3); and four Mg(5,5) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mg14AlSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.237
_cell_length_b   6.367
_cell_length_c   10.185
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.691
_symmetry_Int_Tables_number   1
_cell_volume   347.850
_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  0.169  0.335  0.625  1.0
  Mg  Mg1  1  0.168  0.834  0.625  1.0
  Mg  Mg2  1  0.670  0.334  0.125  1.0
  Mg  Mg3  1  0.666  0.334  0.625  1.0
  Mg  Mg4  1  0.670  0.836  0.125  1.0
  Mg  Mg5  1  0.666  0.832  0.625  1.0
  Mg  Mg6  1  0.329  0.164  0.366  1.0
  Mg  Mg7  1  0.329  0.164  0.884  1.0
  Mg  Mg8  1  0.329  0.665  0.366  1.0
  Mg  Mg9  1  0.329  0.665  0.884  1.0
  Mg  Mg10  1  0.837  0.168  0.374  1.0
  Mg  Mg11  1  0.837  0.168  0.876  1.0
  Mg  Mg12  1  0.838  0.669  0.371  1.0
  Mg  Mg13  1  0.838  0.669  0.879  1.0
  Al  Al14  1  0.161  0.331  0.125  1.0
  Si  Si15  1  0.165  0.833  0.125  1.0
[/CIF]
.