MgAuGa crystallizes in the hexagonal P-62m space group. Mg(1) is bonded in a 11-coordinate geometry to one Au(1), four equivalent Au(2), and six equivalent Ga(1) atoms. There are two inequivalent Au sites. In the first Au site, Au(1) is bonded in a 9-coordinate geometry to three equivalent Mg(1) and six equivalent Ga(1) atoms. In the second Au site, Au(2) is bonded in a 9-coordinate geometry to six equivalent Mg(1) and three equivalent Ga(1) atoms. Ga(1) is bonded in a 10-coordinate geometry to six equivalent Mg(1), two equivalent Au(1), and two equivalent Au(2) atoms.
MgAuGa crystallizes in the hexagonal P-62m space group. Mg(1) is bonded in a 11-coordinate geometry to one Au(1), four equivalent Au(2), and six equivalent Ga(1) atoms. The Mg(1)-Au(1) bond length is 2.81 Å. All Mg(1)-Au(2) bond lengths are 2.85 Å. There are two shorter (3.00 Å) and four longer (3.06 Å) Mg(1)-Ga(1) bond lengths. There are two inequivalent Au sites. In the first Au site, Au(1) is bonded in a 9-coordinate geometry to three equivalent Mg(1) and six equivalent Ga(1) atoms. All Au(1)-Ga(1) bond lengths are 2.67 Å. In the second Au site, Au(2) is bonded in a 9-coordinate geometry to six equivalent Mg(1) and three equivalent Ga(1) atoms. All Au(2)-Ga(1) bond lengths are 2.65 Å. Ga(1) is bonded in a 10-coordinate geometry to six equivalent Mg(1), two equivalent Au(1), and two equivalent Au(2) atoms.