AgGaSe2 is Enargite-like structured and crystallizes in the tetragonal P-4m2 space group. Ag(1) is bonded to four equivalent Se(1) atoms to form AgSe4 tetrahedra that share corners with four equivalent Ag(1)Se4 tetrahedra and corners with eight equivalent Ga(1)Se4 tetrahedra. Ga(1) is bonded to four equivalent Se(1) atoms to form GaSe4 tetrahedra that share corners with four equivalent Ga(1)Se4 tetrahedra and corners with eight equivalent Ag(1)Se4 tetrahedra. Se(1) is bonded to two equivalent Ag(1) and two equivalent Ga(1) atoms to form corner-sharing SeGa2Ag2 tetrahedra.
AgGaSe2 is Enargite-like structured and crystallizes in the tetragonal P-4m2 space group. Ag(1) is bonded to four equivalent Se(1) atoms to form AgSe4 tetrahedra that share corners with four equivalent Ag(1)Se4 tetrahedra and corners with eight equivalent Ga(1)Se4 tetrahedra. All Ag(1)-Se(1) bond lengths are 2.65 Å. Ga(1) is bonded to four equivalent Se(1) atoms to form GaSe4 tetrahedra that share corners with four equivalent Ga(1)Se4 tetrahedra and corners with eight equivalent Ag(1)Se4 tetrahedra. All Ga(1)-Se(1) bond lengths are 2.48 Å. Se(1) is bonded to two equivalent Ag(1) and two equivalent Ga(1) atoms to form corner-sharing SeGa2Ag2 tetrahedra.