Like many rare earths, terbium is a soft, ductile, malleable grey metal. Terbium offers its characteristics to the industrial sector as a component in the manufacture of X-ray screens, phosphorescent substance used for lighting and medical radiography, stabiliser for Zirconium dioxide (O2Zr) crystals, etc.
- Fuel cell components for certain electric cars
- Green fluorescence on banknotes
- Colour television tube component