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  2. Dolly pot - Wikipedia

    en.wikipedia.org/wiki/Dolly_pot

    A dolly pot, also known as a dolly, is a portable tool used for crushing small quantities of gold-bearing rock, by hand, in a process known as dollying. In principle, a dolly pot is somewhat like a large mortar and pestle, but is always made of metal and is intended specifically to crush hard rocks like quartz. It is typically flat at the ...

  3. Borax method - Wikipedia

    en.wikipedia.org/wiki/Borax_method

    About 30% of the world's mercury emissions comes from small scale mining. Efforts are being made to revive the method and spread its use. As of 2012, around 15,000 artisanal gold miners in a small area of Luzon , the main island in the northern portion of the Philippines, use this method exclusively.

  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. Knelson concentrator - Wikipedia

    en.wikipedia.org/wiki/Knelson_concentrator

    A Knelson concentrator is a type of gravity concentration apparatus, predominantly used in the gold mining industry. It is used for the recovery of fine particles of free gold, meaning gold that does not require gold cyanidation for recovery.

  6. Artisanal mining - Wikipedia

    en.wikipedia.org/wiki/Artisanal_mining

    Artisanal mining can include activities as simple as panning for gold in rivers, to as complex as development of underground workings and small-scale processing plants. . Miners use a variety of methods to locate minerals, including historical knowledge, the observation of other minerals or rocks, or technology such as mineral detectors and audio-based reflection seismology surve

  7. Placer mining - Wikipedia

    en.wikipedia.org/wiki/Placer_mining

    19th-century miner pouring water into a rocker box which, when rocked back and forth, will help separate gold dust from the alluvium. Placer mining (/ ˈ p l æ s ər /) [1] is the mining of stream bed deposits for minerals. [2] This may be done by open-pit mining or by various surface excavating equipment or tunneling equipment.

  8. In the New Gold Rush, Equipment Suppliers May Strike It Rich

    www.aol.com/news/2011-01-09-gold-rush-equipment...

    In an uncertain economy, gold almost always goes up in value. Little wonder, then, that the vertiginous swoops and dives of the stock market over the past three years have sent gold values to ...

  9. Rocker box - Wikipedia

    en.wikipedia.org/wiki/Rocker_box

    Like a sluice box, the rocker box has riffles and a carpet in it to trap gold. It was designed to be used in areas with less water than a sluice box. The mineral processing involves pouring water out of a small cup and then rocking the small sluice box like a cradle, thus the name rocker box or cradle.

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