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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. It consists of a high-sided box, which is open on one end and on top, [ 1 ] and was placed on rockers .
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 ...
Scrap yards directories are also used by recyclers to find facilities in the US and Canada, allowing users to get in contact with yards. With resources online for recyclers to look at for scrapping tips, like websites, blogs, and search engines, scrapping is often referred to as a hand and labor-intensive job.
A stacker is a large machine used in bulk material handling. Its function is to pile bulk material such as limestone, ores, coal and cereals onto a stockpile. A reclaimer can be used to recover the material. Gold dredges in Alaska had a stacker that was a fixed part of the dredge.
At that time gold was selling around $20 an ounce. The values on the lower adit were reported to be $10.00 per ton or 1/2 ounce of gold per ton. The equipment used at that time was a 6-inch (150 mm) by 12-inch (300 mm) Blake crusher and a 5-foot (1.5 m) Huntington mill.
Gold pans and shovels are commonly allowed, but sluice boxes and suction dredges may be prohibited in some areas. [12] [13] There are public mining areas in many states, and prospecting may allow one to stake a gold placer claim or other type of mining claim in certain areas. Some public lands have been set aside for recreational gold panning.
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