The material structure described by MgAl is Tetraauricupride structured and crystallizes in the tetragonal P4/mmm space group. Mg(1) is bonded to four equivalent Mg(1) and eight equivalent Al(1) atoms to form MgMg4Al8 cuboctahedra that share corners with twelve equivalent Mg(1)Mg4Al8 cuboctahedra, edges with eight equivalent Mg(1)Mg4Al8 cuboctahedra, edges with sixteen equivalent Al(1)Mg8Al4 cuboctahedra, faces with eight equivalent Al(1)Mg8Al4 cuboctahedra, and faces with ten equivalent Mg(1)Mg4Al8 cuboctahedra. Al(1) is bonded to eight equivalent Mg(1) and four equivalent Al(1) atoms to form distorted AlMg8Al4 cuboctahedra that share corners with twelve equivalent Al(1)Mg8Al4 cuboctahedra, edges with eight equivalent Al(1)Mg8Al4 cuboctahedra, edges with sixteen equivalent Mg(1)Mg4Al8 cuboctahedra, faces with eight equivalent Mg(1)Mg4Al8 cuboctahedra, and faces with ten equivalent Al(1)Mg8Al4 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgAl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.000
_cell_length_b   3.000
_cell_length_c   4.176
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   37.591
_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  0.500  0.500  0.500  1.0
  Al  Al1  1  0.000  0.000  0.000  1.0
[/CIF]
.
The material structure described by MgAl is Tetraauricupride structured and crystallizes in the tetragonal P4/mmm space group. Mg(1) is bonded to four equivalent Mg(1) and eight equivalent Al(1) atoms to form MgMg4Al8 cuboctahedra that share corners with twelve equivalent Mg(1)Mg4Al8 cuboctahedra, edges with eight equivalent Mg(1)Mg4Al8 cuboctahedra, edges with sixteen equivalent Al(1)Mg8Al4 cuboctahedra, faces with eight equivalent Al(1)Mg8Al4 cuboctahedra, and faces with ten equivalent Mg(1)Mg4Al8 cuboctahedra. Al(1) is bonded to eight equivalent Mg(1) and four equivalent Al(1) atoms to form distorted AlMg8Al4 cuboctahedra that share corners with twelve equivalent Al(1)Mg8Al4 cuboctahedra, edges with eight equivalent Al(1)Mg8Al4 cuboctahedra, edges with sixteen equivalent Mg(1)Mg4Al8 cuboctahedra, faces with eight equivalent Mg(1)Mg4Al8 cuboctahedra, and faces with ten equivalent Al(1)Mg8Al4 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgAl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.000
_cell_length_b   3.000
_cell_length_c   4.176
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   37.591
_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  0.500  0.500  0.500  1.0
  Al  Al1  1  0.000  0.000  0.000  1.0
[/CIF]
.