Ag3Mg is Uranium Silicide-like structured and crystallizes in the hexagonal P6_3/mmc space group. Mg(1) is bonded to twelve equivalent Ag(1) atoms to form MgAg12 cuboctahedra that share corners with six equivalent Mg(1)Ag12 cuboctahedra, corners with twelve equivalent Ag(1)Mg4Ag8 cuboctahedra, edges with eighteen equivalent Ag(1)Mg4Ag8 cuboctahedra, faces with eight equivalent Mg(1)Ag12 cuboctahedra, and faces with twelve equivalent Ag(1)Mg4Ag8 cuboctahedra. Ag(1) is bonded to four equivalent Mg(1) and eight equivalent Ag(1) atoms to form distorted AgMg4Ag8 cuboctahedra that share corners with four equivalent Mg(1)Ag12 cuboctahedra, corners with fourteen equivalent Ag(1)Mg4Ag8 cuboctahedra, edges with six equivalent Mg(1)Ag12 cuboctahedra, edges with twelve equivalent Ag(1)Mg4Ag8 cuboctahedra, faces with four equivalent Mg(1)Ag12 cuboctahedra, and faces with sixteen equivalent Ag(1)Mg4Ag8 cuboctahedra.
Ag3Mg is Uranium Silicide-like structured and crystallizes in the hexagonal P6_3/mmc space group. Mg(1) is bonded to twelve equivalent Ag(1) atoms to form MgAg12 cuboctahedra that share corners with six equivalent Mg(1)Ag12 cuboctahedra, corners with twelve equivalent Ag(1)Mg4Ag8 cuboctahedra, edges with eighteen equivalent Ag(1)Mg4Ag8 cuboctahedra, faces with eight equivalent Mg(1)Ag12 cuboctahedra, and faces with twelve equivalent Ag(1)Mg4Ag8 cuboctahedra. There are six shorter (2.90 Å) and six longer (2.93 Å) Mg(1)-Ag(1) bond lengths. Ag(1) is bonded to four equivalent Mg(1) and eight equivalent Ag(1) atoms to form distorted AgMg4Ag8 cuboctahedra that share corners with four equivalent Mg(1)Ag12 cuboctahedra, corners with fourteen equivalent Ag(1)Mg4Ag8 cuboctahedra, edges with six equivalent Mg(1)Ag12 cuboctahedra, edges with twelve equivalent Ag(1)Mg4Ag8 cuboctahedra, faces with four equivalent Mg(1)Ag12 cuboctahedra, and faces with sixteen equivalent Ag(1)Mg4Ag8 cuboctahedra. There are a spread of Ag(1)-Ag(1) bond distances ranging from 2.89-2.92 Å.