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  2. Tantalum - Wikipedia

    en.wikipedia.org/wiki/Tantalum

    Tantalum is a chemical element; it has symbol Ta and atomic number 73. ... Tantalite (Fe, Mn)Ta 2 O 6 is the most important mineral for tantalum extraction.

  3. Kenticha mine - Wikipedia

    en.wikipedia.org/wiki/Kenticha_mine

    Kenticha was mined for tantalum from 1990-2017. [5] Peak production from the mine was 90-95 tons of tantalum concentrate per year, valued at $20 million dollars/year. [3] Another sources states that before 2012, the mine produced 275 tons of tantalum/year, which was nearly 14% of global supply. [6]

  4. Coltan - Wikipedia

    en.wikipedia.org/wiki/Coltan

    A piece of columbite–tantalite, size 6.0 × 2.5 × 2.1 cm. Coltan (short for columbite–tantalites and known industrially as tantalite) is a dull black metallic ore from which the elements niobium and tantalum are extracted.

  5. Mining industry of the Democratic Republic of the Congo

    en.wikipedia.org/wiki/Mining_industry_of_the...

    ] Although these wars have components of intertribal conflict, in several cases the conflicts have been induced by external forces, such as changes in international support and foreign aid, and demand for resource extraction. [119] As a result of tantalum mining and wars, societies in the eastern regions of the Congo are experiencing heightened ...

  6. Mining in Ethiopia - Wikipedia

    en.wikipedia.org/wiki/Mining_in_Ethiopia

    Tantalum is mined at Kenticha mine. It is found in the pegmatitic rocks of the Southern Greenstone Belt. [6] Tantalum is used in making all electronic devices such as mobile phones, cameras, computers and so forth; [1] and its mining programme is the sixth largest in the world. Kenticha mines has resources to the extent of 9,000 tonnes of ...

  7. Lists of countries by mineral production - Wikipedia

    en.wikipedia.org/wiki/Lists_of_countries_by...

    Metal Largest producer Second largest producer Complete list Aluminium [6] China India List of countries by aluminium production: Bauxite [7] Australia Guinea List of countries by bauxite production

  8. Columbite - Wikipedia

    en.wikipedia.org/wiki/Columbite

    During the extraction of niobite or tantalum from columbite, strong acids at high temperatures are used that have negative impacts to the environment. Hydrofluoric acid and sulfuric acid are used in the ore refining processes between temperatures of 250-300 o C. [ 22 ] These acids can cause soil acidification , air pollution , and water ...

  9. Three Aloes mine - Wikipedia

    en.wikipedia.org/wiki/Three_Aloes_mine

    The Three Aloes mine is a large mine located in the western part of Namibia in Erongo Region.Three Aloes represents one of the largest tantalum reserves in Namibia, having estimated reserves of 13.2 million tonnes of ore grading 0.026% tantalum.