Al3BN4 is Lavarevi\'{c}ite structured and crystallizes in the cubic P-43m space group. Al(1) is bonded to four equivalent N(1) atoms to form AlN4 tetrahedra that share corners with four equivalent B(1)N4 tetrahedra and corners with eight equivalent Al(1)N4 tetrahedra. B(1) is bonded to four equivalent N(1) atoms to form BN4 tetrahedra that share corners with twelve equivalent Al(1)N4 tetrahedra. N(1) is bonded to three equivalent Al(1) and one B(1) atom to form corner-sharing NAl3B tetrahedra.
Al3BN4 is Lavarevi\'{c}ite structured and crystallizes in the cubic P-43m space group. Al(1) is bonded to four equivalent N(1) atoms to form AlN4 tetrahedra that share corners with four equivalent B(1)N4 tetrahedra and corners with eight equivalent Al(1)N4 tetrahedra. All Al(1)-N(1) bond lengths are 1.89 Å. B(1) is bonded to four equivalent N(1) atoms to form BN4 tetrahedra that share corners with twelve equivalent Al(1)N4 tetrahedra. All B(1)-N(1) bond lengths are 1.66 Å. N(1) is bonded to three equivalent Al(1) and one B(1) atom to form corner-sharing NAl3B tetrahedra.