FeAgTe2 is Ilmenite-like structured and crystallizes in the trigonal P-3m1 space group. Fe(1) is bonded to two equivalent Ag(1) and four equivalent Te(1) atoms to form FeAg2Te4 octahedra that share corners with four equivalent Ag(2)Te6 octahedra, corners with six equivalent Te(1)Fe2Ag2 tetrahedra, edges with two equivalent Ag(1)Fe3Te3 octahedra, and edges with four equivalent Fe(1)Ag2Te4 octahedra. The corner-sharing octahedral tilt angles are 57°. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to three equivalent Fe(1) and three equivalent Te(1) atoms to form AgFe3Te3 octahedra that share corners with three equivalent Ag(1)Fe3Te3 octahedra, corners with three equivalent Ag(2)Te6 octahedra, corners with six equivalent Te(1)Fe2Ag2 tetrahedra, edges with three equivalent Fe(1)Ag2Te4 octahedra, and edges with three equivalent Te(1)Fe2Ag2 tetrahedra. The corner-sharing octahedral tilt angles range from 0-74°. In the second Ag site, Ag(2) is bonded to six equivalent Te(1) atoms to form distorted AgTe6 octahedra that share corners with six equivalent Ag(1)Fe3Te3 octahedra and corners with twelve equivalent Fe(1)Ag2Te4 octahedra. The corner-sharing octahedral tilt angles range from 57-74°. Te(1) is bonded to two equivalent Fe(1), one Ag(1), and one Ag(2) atom to form distorted TeFe2Ag2 tetrahedra that share corners with two equivalent Ag(1)Fe3Te3 octahedra, corners with three equivalent Fe(1)Ag2Te4 octahedra, corners with nine equivalent Te(1)Fe2Ag2 tetrahedra,  an edgeedge with one Ag(1)Fe3Te3 octahedra, and edges with two equivalent Te(1)Fe2Ag2 tetrahedra. The corner-sharing octahedral tilt angles range from 12-84°.
FeAgTe2 is Ilmenite-like structured and crystallizes in the trigonal P-3m1 space group. Fe(1) is bonded to two equivalent Ag(1) and four equivalent Te(1) atoms to form FeAg2Te4 octahedra that share corners with four equivalent Ag(2)Te6 octahedra, corners with six equivalent Te(1)Fe2Ag2 tetrahedra, edges with two equivalent Ag(1)Fe3Te3 octahedra, and edges with four equivalent Fe(1)Ag2Te4 octahedra. The corner-sharing octahedral tilt angles are 57°. Both Fe(1)-Ag(1) bond lengths are 2.85 Å. All Fe(1)-Te(1) bond lengths are 2.55 Å. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to three equivalent Fe(1) and three equivalent Te(1) atoms to form AgFe3Te3 octahedra that share corners with three equivalent Ag(1)Fe3Te3 octahedra, corners with three equivalent Ag(2)Te6 octahedra, corners with six equivalent Te(1)Fe2Ag2 tetrahedra, edges with three equivalent Fe(1)Ag2Te4 octahedra, and edges with three equivalent Te(1)Fe2Ag2 tetrahedra. The corner-sharing octahedral tilt angles range from 0-74°. All Ag(1)-Te(1) bond lengths are 3.02 Å. In the second Ag site, Ag(2) is bonded to six equivalent Te(1) atoms to form distorted AgTe6 octahedra that share corners with six equivalent Ag(1)Fe3Te3 octahedra and corners with twelve equivalent Fe(1)Ag2Te4 octahedra. The corner-sharing octahedral tilt angles range from 57-74°. All Ag(2)-Te(1) bond lengths are 2.89 Å. Te(1) is bonded to two equivalent Fe(1), one Ag(1), and one Ag(2) atom to form distorted TeFe2Ag2 tetrahedra that share corners with two equivalent Ag(1)Fe3Te3 octahedra, corners with three equivalent Fe(1)Ag2Te4 octahedra, corners with nine equivalent Te(1)Fe2Ag2 tetrahedra,  an edgeedge with one Ag(1)Fe3Te3 octahedra, and edges with two equivalent Te(1)Fe2Ag2 tetrahedra. The corner-sharing octahedral tilt angles range from 12-84°.