Niobium Mining, Techniques, Mines, Occurence, Processing ...
Brazil is found to be the highest producer of niobium. The measure of niobium produced by Brazil currently is 40,000 metric tons per year. Nigeria is known to have reserves of 14,000 tons of niobium and is the second highest African producer of niobium after Rwanda. Niobium mines are located in Nigeria in Jos Plateau, Kano and Bauchi states.