Ho3Ga is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Ho(1) is bonded to eight equivalent Ho(1) and four equivalent Ga(1) atoms to form distorted HoHo8Ga4 cuboctahedra that share corners with twelve equivalent Ho(1)Ho8Ga4 cuboctahedra, edges with eight equivalent Ga(1)Ho12 cuboctahedra, edges with sixteen equivalent Ho(1)Ho8Ga4 cuboctahedra, faces with four equivalent Ga(1)Ho12 cuboctahedra, and faces with fourteen equivalent Ho(1)Ho8Ga4 cuboctahedra. Ga(1) is bonded to twelve equivalent Ho(1) atoms to form GaHo12 cuboctahedra that share corners with twelve equivalent Ga(1)Ho12 cuboctahedra, edges with twenty-four equivalent Ho(1)Ho8Ga4 cuboctahedra, faces with six equivalent Ga(1)Ho12 cuboctahedra, and faces with twelve equivalent Ho(1)Ho8Ga4 cuboctahedra.
Ho3Ga is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Ho(1) is bonded to eight equivalent Ho(1) and four equivalent Ga(1) atoms to form distorted HoHo8Ga4 cuboctahedra that share corners with twelve equivalent Ho(1)Ho8Ga4 cuboctahedra, edges with eight equivalent Ga(1)Ho12 cuboctahedra, edges with sixteen equivalent Ho(1)Ho8Ga4 cuboctahedra, faces with four equivalent Ga(1)Ho12 cuboctahedra, and faces with fourteen equivalent Ho(1)Ho8Ga4 cuboctahedra. All Ho(1)-Ho(1) bond lengths are 3.32 Å. All Ho(1)-Ga(1) bond lengths are 3.32 Å. Ga(1) is bonded to twelve equivalent Ho(1) atoms to form GaHo12 cuboctahedra that share corners with twelve equivalent Ga(1)Ho12 cuboctahedra, edges with twenty-four equivalent Ho(1)Ho8Ga4 cuboctahedra, faces with six equivalent Ga(1)Ho12 cuboctahedra, and faces with twelve equivalent Ho(1)Ho8Ga4 cuboctahedra.