Coltan - Wikipedia
WEBColtan (short for columbite–tantalites and known industrially as tantalite) is a dull black metallic ore from which the elements niobium and tantalum are extracted. The niobium-dominant mineral in coltan is columbite (after niobium's original American name columbium), and the tantalum-dominant mineral is tantalite.
What is Coltan? 6 Facts You Should Know - Investing News Network
WEBMay. 18, 2023 01:40PM PST. What is coltan? Here are six key facts about coltan you need to know, including where it’s mined, what it’s used for and why it’s important. Bjoern Wylezich /...
What coltan mining in the DRC costs people and the environment
WEBMay 29, 2022 · In 2021, the DRC’s coltan production amounted to an estimated 700 tonnes, making the Central African country the world’s largest coltan producer by far. Coltan is indispensable to the ...
Coltan discovered in Kenya - Mining Minister Salim Mvurya - BBC
WEB25 January 2024. By Gloria Aradi,BBC News, Nairobi. Getty Images. Coltan is refined into tantalum, which is then used to manufacture smartphones and other electronic devices. Kenya has discovered...
Coltan mining and ethics - Wikipedia
WEBColtan mines operate under boom-bust economics and not only strip the mineral from the land, but also cause environmental degradation. In mining towns that depend on coltan for their wealth, fewer people cultivate the land. Numerous instances of famine related to the mining operations contribute to increasingly unsustainable types for land use.
Coltan | Earth Sciences Museum - University of Waterloo
WEBKathy Feick. Coltan is short for columbite-tantalite, a dull metallic ore. When refined, coltan becomes a heat resistant powder, metallic tantalum, which has unique properties for storing electrical charge. Coltan occurs in granitic pegmatites, pockets where the deep seated molten rock crystallized last. Pegmatites contain many rare metals, as ...
Five things you need to know about coltan - ICIJ
WEBMar 4, 2012 · Coltan’s ability to hold and move electrical signals, and its conductive ability in extreme temperatures, makes it ideal for smart bomb guidance controls. Security analysts say it is a strategic mineral.
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