11. In addition to ferro niobium there are two large plants producing phosphates. 12. Betafite is an important ore of thorium, uranium, and niobium . 13. Niobium oxide is a hard ceramic material characterized by high metallic conductivity.14. In the reverse, the niobium portion depicts navigation satellites orbiting the Earth. 15. Niobium was Columbia ", the poetical name for the United States.16. Copper, titanium, vanadium, and niobium are added for strengthening purposes. 17. The superconducting portions of most current magnets are composed of niobium -titanium. 18. Small amounts of niobium are added to stainless steel to improve its quality. 19. Another niobium alloy was used for the nozzle of the Apollo Service Module. 20. This confirmed that Charles Hatchett had discovered niobium in 1801 in columbite ore.
