FeGa crystallizes in the hexagonal P-6m2 space group. Fe(1) is bonded to six equivalent Fe(1) and six equivalent Ga(1) atoms to form FeGa6Fe6 cuboctahedra that share corners with eighteen equivalent Fe(1)Ga6Fe6 cuboctahedra, edges with six equivalent Fe(1)Ga6Fe6 cuboctahedra, edges with twelve equivalent Ga(1)Ga6Fe6 cuboctahedra, faces with eight equivalent Fe(1)Ga6Fe6 cuboctahedra, and faces with twelve equivalent Ga(1)Ga6Fe6 cuboctahedra. Ga(1) is bonded to six equivalent Fe(1) and six equivalent Ga(1) atoms to form GaGa6Fe6 cuboctahedra that share corners with eighteen equivalent Ga(1)Ga6Fe6 cuboctahedra, edges with six equivalent Ga(1)Ga6Fe6 cuboctahedra, edges with twelve equivalent Fe(1)Ga6Fe6 cuboctahedra, faces with eight equivalent Ga(1)Ga6Fe6 cuboctahedra, and faces with twelve equivalent Fe(1)Ga6Fe6 cuboctahedra.
FeGa crystallizes in the hexagonal P-6m2 space group. Fe(1) is bonded to six equivalent Fe(1) and six equivalent Ga(1) atoms to form FeGa6Fe6 cuboctahedra that share corners with eighteen equivalent Fe(1)Ga6Fe6 cuboctahedra, edges with six equivalent Fe(1)Ga6Fe6 cuboctahedra, edges with twelve equivalent Ga(1)Ga6Fe6 cuboctahedra, faces with eight equivalent Fe(1)Ga6Fe6 cuboctahedra, and faces with twelve equivalent Ga(1)Ga6Fe6 cuboctahedra. All Fe(1)-Fe(1) bond lengths are 2.75 Å. All Fe(1)-Ga(1) bond lengths are 2.56 Å. Ga(1) is bonded to six equivalent Fe(1) and six equivalent Ga(1) atoms to form GaGa6Fe6 cuboctahedra that share corners with eighteen equivalent Ga(1)Ga6Fe6 cuboctahedra, edges with six equivalent Ga(1)Ga6Fe6 cuboctahedra, edges with twelve equivalent Fe(1)Ga6Fe6 cuboctahedra, faces with eight equivalent Ga(1)Ga6Fe6 cuboctahedra, and faces with twelve equivalent Fe(1)Ga6Fe6 cuboctahedra. All Ga(1)-Ga(1) bond lengths are 2.75 Å.