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  2. Gold extraction - Wikipedia

    en.wikipedia.org/wiki/Gold_extraction

    Gold extraction is the extraction of gold from dilute ores using a combination of chemical processes. Gold mining produces about 3600 tons annually, [1] and another 300 tons is produced from recycling. [2] Since the 20th century, gold has been principally extracted in a cyanide process by leaching the ore with cyanide solution.

  3. Gold cyanidation - Wikipedia

    en.wikipedia.org/wiki/Gold_cyanidation

    The expansion of gold mining in the Rand of South Africa began to slow down in the 1880s, as the new deposits found tended to contain pyritic ore. The gold could not be extracted from this compound with any of the then available chemical processes or technologies. [5]

  4. Gold mining - Wikipedia

    en.wikipedia.org/wiki/Gold_mining

    Gold mining is the extraction of gold by mining. Historically, mining gold from alluvial deposits used manual separation processes, such as gold panning. The expansion of gold mining to ores that are not on the surface has led to more complex extraction processes such as pit mining and gold cyanidation. In the 20th and 21st centuries, most ...

  5. 7 Best Gold Stocks for 2023

    www.aol.com/finance/best-gold-stocks-buy-2022...

    Here are seven gold mining companies that appear to be rated as “buys” right now by experts. 1. Barrick Gold. Why it stands out: ...

  6. 15 Best Gold Mining Stocks to Invest In

    www.aol.com/news/15-best-gold-mining-stocks...

    You can skip our detailed analysis of the mining industry’s outlook for 2021 and some of the major growth catalysts for mining stocks, and go directly to the 5 Best Gold Mining Stocks to Invest ...

  7. Heap leaching - Wikipedia

    en.wikipedia.org/wiki/Heap_leaching

    Similar to in situ mining, heap leach mining differs in that it places ore on a liner, then adds the chemicals via drip systems to the ore, whereas in situ mining lacks these liners and pulls pregnant solution up to obtain the minerals. Heap leaching is widely used in modern large-scale mining operations as it produces the desired concentrates ...