"Columbite is an important resource for many industries, particularly in the production of high-grade and specialty steels, and our ability to meet growing global demand is a testament to the ...

Short for columbite-tantalite, coltan ore itself hosts columbite, also known as niobite, and tantalite, which contain the technology elements niobium and tantalum respectively.

In 1844, Heinrich Rose, working with samples of columbite and tantalite, produced two new separate, but very similar, acids, which he named niobic acid and pelopic acid.

However, production remains low, with only 80 tonnes of combined columbite-tantalite and cassiterite concentrate produced--containing around 4 tonnes of tantalum and 35 tonnes of tin.

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Hastings Technology Metals is ramping up its efforts to prove up niobium as a credible add-on to its rare earths mission at its emerging Yangibana project in WA.

FOR many years the chief source of niobium has been the mineral ‘columbite’, a member of the columbite–tantalite series (Fe, Mn) (Nb Ta)2O6. As the name of the series implies, niobium ...

This tale begins with a mineral called columbite, the occurrence of which in the United States was presumably discovered by John Winthrop the Younger, an early governor of the Connecticut Colony ...

The mining firm will deal in the exploration and mining of monoxide, Tin/columbite, Zircon and other rare earth elements in Toro and Dass Local Government Area.

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The first industrial scale Coltan (Columbite-Tantalite) separation plant in Africa will be built in Rwanda by AB Minerals Corporation, and will become operational in mid-2017. It will bring much ...