All 7-vertex, Elastic stiffness coefficient

• O-Zr
• O-Zn
• Fe-O
• B-Re
• H-Li-O-Rb-S
• non-disordered
• chalcogen
• disordered
• transitional
• nonmetal
• monoclinic
• orthorhombic
• hexagonal
• cubic
• tetragonal