Birefringent, Thermal and thermodynamic properties, Trigonal

• Ni-O
• Li-Nb-O
• F-Fe-H-O-Si
• C-Ca-O
• B-Ba-O
• thermal conductivity
• thermal expansion
• values of thermal conductivity
• enthalpy or energy
• linear thermal expansion coefficient
• birefringent
• nonmetal
• chalcogen
• disordered
• transitional