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  2. Rocker box - Wikipedia

    en.wikipedia.org/wiki/Rocker_box

    Gold prospector pouring water through his rocker box, Pinos Altos, New Mexico (1940). Rocker box exhibit at Dahlonega Gold Museum. A rocker box (also known as a cradle or a big box) is a gold mining implement for separating alluvial placer gold from sand and gravel which was used in placer mining in the 19th century.

  3. Gold prospecting - Wikipedia

    en.wikipedia.org/wiki/Gold_prospecting

    A gold pan. Gold prospecting is the act of searching for new gold deposits. Methods used vary with the type of deposit sought and the resources of the prospector. Although traditionally a commercial activity, in some developed countries placer gold prospecting has also become a popular outdoor recreation. Gold prospecting has been popular since ...

  4. Gold dredge - Wikipedia

    en.wikipedia.org/wiki/Gold_dredge

    Gold Dredge, Klondike River, Canada, 1915 The Yankee Fork dredge near Bonanza City, Idaho, which operated into the 1950s. A gold dredge is a placer mining machine that extracts gold from sand, gravel, and dirt using water and mechanical methods. The original gold dredges were large, multi-story machines built in the first half of the 1900s.

  5. Prospecting - Wikipedia

    en.wikipedia.org/wiki/Prospecting

    Prospecting pickaxes are used to scrape at rocks and minerals, obtaining small samples that can be tested for trace amounts of ore. Modern prospecting pickaxes are also sometimes equipped with magnets, to aid in the gathering of ferromagnetic ores. Prospecting pickaxes are usually equipped with a triangular head, with a very sharp point.

  6. Gold panning - Wikipedia

    en.wikipedia.org/wiki/Gold_panning

    Panning for gold in a creek bed Gold in the pan, Alaska Man gold panning in Fairplay, Colorado early 1900s with dog. Gold panning, or simply panning, is a form of placer mining and traditional mining that extracts gold from a placer deposit using a pan. The process is one of the simplest ways to extract gold, and is popular with geology ...

  7. Sepro Mineral Systems - Wikipedia

    en.wikipedia.org/wiki/Sepro_Mineral_Systems

    Sepro Mineral Systems Corp. is a Canadian company founded in 1987 and headquartered in British Columbia, Canada.The outcome of the acquisition of Sepro Mineral Processing International by Falcon Concentrators in 2008, [1] the company's key focus is the production of mineral processing equipment for the mining and aggregate industries. [2]

  8. Placer deposit - Wikipedia

    en.wikipedia.org/wiki/Placer_deposit

    Placer mining is an important source of gold, and was the main technique used in the early years of many gold rushes, including the California Gold Rush. Types of placer deposits include alluvium, eluvium, beach placers, aeolian placers and paleo-placers. [2] Placer materials must be both dense and resistant to weathering processes. To ...

  9. Gold cyanidation - Wikipedia

    en.wikipedia.org/wiki/Gold_cyanidation

    It is the most commonly used leaching process for gold extraction. [1] Cyanidation is also widely used silver in extraction, usually after froth flotation. [2] Production of reagents for mineral processing to recover gold represents 70% of cyanide consumption globally.