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  2. List of countries by gold production - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by_gold...

    In 1970, South Africa produced 995 tonnes or 32 million ounces of gold, two-thirds of the world's production of 47.5 million ounces. [2] Production figures are for primary mine production. In the US , for example, for the year 2011, secondary sources (new and old scrap) exceeded primary production.

  3. Morro Velho - Wikipedia

    en.wikipedia.org/wiki/Morro_Velho

    Despite closing of the Minha Velha and Engenho D'Água mines in 2003 and 2004, gold production has increased over the past three years, with 240,000 ounces (6,800 kilograms) of gold produced in 2004 at an average recovered ore grade of 0.222 ounces per ton (7.62 grams per metric ton). Cash costs of production totalled $133 per ounce, with the ...

  4. Prices of chemical elements - Wikipedia

    en.wikipedia.org/wiki/Prices_of_chemical_elements

    It is followed by caesium, iridium and palladium by mass and iridium, gold and platinum by volume. Carbon in the form of diamond can be more expensive than rhodium. Per-kilogram prices of some synthetic radioisotopes range to trillions of dollars.

  5. Indigenous mining complicates Brazil's fight against illegal gold

    www.aol.com/news/indigenous-mining-complicates...

    Despite visible poverty, Jacareacanga's per capita GDP is 90,000 reais ($15,157.38), higher than Sao Paulo, Brazil's largest metropolis, a sure sign of the illegal wealth gold mining is generating.

  6. Gold mining in Brazil - Wikipedia

    en.wikipedia.org/wiki/Gold_mining_in_Brazil

    Gold mining in Brazil has taken place continually in the Amazon since the 1690s, and has been important to the economies of Brazil and surrounding countries. In the late 17th century, amid the search for indigenous people to use in the slave trade , Portuguese colonists began to recognize the abundance of gold in the Amazon, triggering what ...

  7. Brazil probes Mercado Libre sales of mercury used by illegal ...

    www.aol.com/news/brazil-probes-mercado-libre...

    Public prosecutors chasing illegal gold mining in Brazil's Amazon region on Wednesday opened an investigation into on-line sales of mercury through Mercado Libre, Latin America's largest e ...

  8. Gold miners bring fresh wave of suffering to Brazil's Yanomami

    www.aol.com/news/gold-miners-bring-fresh-wave...

    A year after President Luiz Inacio Lula da Silva declared a humanitarian crisis among the Yanomami and vowed zero tolerance for illegal mining, environmental enforcers warn that Brazil is ...

  9. Mining in Brazil - Wikipedia

    en.wikipedia.org/wiki/Mining_in_Brazil

    In 2019, Brazil's figures were as follows: it was the world's largest producer of niobium (88.9 thousand tons); [2] the 2nd largest world producer of tantalum (430 tons); [3] the 2nd largest world producer of iron ore (405 million tons); [4] the 4th largest world producer of manganese (1.74 million tons); [5] the 4th largest world producer of bauxite (34 million tons); [6] the 4th largest ...