FOR many years the chief source of niobium has been the mineral ‘columbite’, a member of the columbite–tantalite series (Fe, Mn) (Nb Ta) 2 O 6. As the name of the series implies, niobium ...

“According to him, the fact that Ondo State contributes significantly to Nigeria’s wealth of natural resources, with an array of minerals such as oil and gas, bitumen, quartz sand, clay, talc, granite ...

The Nigerian Upstream Petroleum Regulatory Commission has called on the Ondo State Government to form a partnership with the Federal Ministry of Mines and Solid Minerals to harness the mineral ...