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  2. Prices of chemical elements - Wikipedia

    en.wikipedia.org/wiki/Prices_of_chemical_elements

    Graphite flakes can cost around US$0.9/kg carbon. [20] Price of synthetic industrial diamond for grinding and polishing can range from 1200 to 13 300 USD/kg, while cost per weight of large synthetic diamonds for industrial applications can be on the order of million dollars per kilogram. [21] 7: N: Nitrogen: 0.0012506: 19 (5.263 × 10 17 kg) 0. ...

  3. Coltan - Wikipedia

    en.wikipedia.org/wiki/Coltan

    Talison Minerals paid $205 million to buy the Wodgina and Greenbushes tantalum business of Sons of Gwalia but temporarily closed Wodgina because of falling tantalum prices. The mine re-opened in 2011 but closed again after less than a year. Atlas Iron began mining iron ore there in 2010 and ceased operations there in April 2017. [21]

  4. Tantalite - Wikipedia

    en.wikipedia.org/wiki/Tantalite

    The mineral group tantalite [(Fe, Mn)Ta 2 O 6] is the primary source of the chemical element tantalum, a corrosion (heat and acid) resistant metal. It is chemically similar to columbite , and the two are often grouped together as a semi-singular mineral called coltan or "columbite-tantalite" in many mineral guides.

  5. Mineral industry of Mozambique - Wikipedia

    en.wikipedia.org/wiki/Mineral_industry_of_Mozambique

    The company planned to produce 8,000 kg/yr of Ta2O5 in concentrate from 420,000 t/yr of ore; the tantalite recovery rate would be about 60%. [1] Men attacked the Muiane mine with "guns, machetes and pickaxes" [5] in 2015, upset over the shooting of what the company said was an illegal miner.

  6. Period 6 element - Wikipedia

    en.wikipedia.org/wiki/Period_6_element

    Tantalum is a chemical element with ... as a by-product of molybdenum and copper ore's extraction ... US$4,575 per kilogram (US$142.30 per troy ...

  7. AVX's Supply of Tantalum Ore Not Affected by Dar es Salaam ...

    www.aol.com/news/2013-02-15-avxs-supply-of...

    The article AVX's Supply of Tantalum Ore Not Affected by Dar es Salaam Mineral Thefts originally appeared on Fool.com. Try any of our Foolish newsletter services free for 30 days .

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    The search engine that helps you find exactly what you're looking for. Find the most relevant information, video, images, and answers from all across the Web.

  9. Marropino mine - Wikipedia

    en.wikipedia.org/wiki/Marropino_mine

    The research team at the Marropino mine had teamed up with a multidisciplinary team of the University of Glasgow to optimize the recovery of tantalum from its ore, as 50% of the rare metal was usually not extracted and disposed of as mineral waste. [11] The research concluded: [12]