Mn3Ga is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. Mn(1) is bonded to eight equivalent Mn(1) and four equivalent Ga(1) atoms to form distorted MnMn8Ga4 cuboctahedra that share corners with four equivalent Ga(1)Mn12 cuboctahedra, corners with fourteen equivalent Mn(1)Mn8Ga4 cuboctahedra, edges with six equivalent Ga(1)Mn12 cuboctahedra, edges with twelve equivalent Mn(1)Mn8Ga4 cuboctahedra, faces with four equivalent Ga(1)Mn12 cuboctahedra, and faces with sixteen equivalent Mn(1)Mn8Ga4 cuboctahedra. Ga(1) is bonded to twelve equivalent Mn(1) atoms to form GaMn12 cuboctahedra that share corners with six equivalent Ga(1)Mn12 cuboctahedra, corners with twelve equivalent Mn(1)Mn8Ga4 cuboctahedra, edges with eighteen equivalent Mn(1)Mn8Ga4 cuboctahedra, faces with eight equivalent Ga(1)Mn12 cuboctahedra, and faces with twelve equivalent Mn(1)Mn8Ga4 cuboctahedra.
Mn3Ga is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. Mn(1) is bonded to eight equivalent Mn(1) and four equivalent Ga(1) atoms to form distorted MnMn8Ga4 cuboctahedra that share corners with four equivalent Ga(1)Mn12 cuboctahedra, corners with fourteen equivalent Mn(1)Mn8Ga4 cuboctahedra, edges with six equivalent Ga(1)Mn12 cuboctahedra, edges with twelve equivalent Mn(1)Mn8Ga4 cuboctahedra, faces with four equivalent Ga(1)Mn12 cuboctahedra, and faces with sixteen equivalent Mn(1)Mn8Ga4 cuboctahedra. There are a spread of Mn(1)-Mn(1) bond distances ranging from 2.44-2.70 Å. There are two shorter (2.57 Å) and two longer (2.61 Å) Mn(1)-Ga(1) bond lengths. Ga(1) is bonded to twelve equivalent Mn(1) atoms to form GaMn12 cuboctahedra that share corners with six equivalent Ga(1)Mn12 cuboctahedra, corners with twelve equivalent Mn(1)Mn8Ga4 cuboctahedra, edges with eighteen equivalent Mn(1)Mn8Ga4 cuboctahedra, faces with eight equivalent Ga(1)Mn12 cuboctahedra, and faces with twelve equivalent Mn(1)Mn8Ga4 cuboctahedra.