Birefringent, Chalcogen, Disordered, Nonmetal, Transitional, Trigonal

• Ni-O
• Li-Nb-O
• Ga-La-O-Si
• Li-Mg-Nb-O
• F-Fe-H-O-Si
• optical properties
• electronic and electrical properties
• structural properties
• magnetic properties
• mechanical properties
• nonmetal
• birefringent
• disordered
• chalcogen
• transitional