Chalcogen, Disordered, Elastic compliance

• Ga-La-O-Si
• O-Zn
• H-Na-O-Se
• Ba-O-Ti
• Ga-La-Nb-O
• chalcogen
• disordered
• nonmetal
• piezoelectric
• transitional
• trigonal
• monoclinic
• tetragonal
• cubic
• orthorhombic