Froth flotation WikipediaFroth flotation is a process for selectively separating hydrophobic materials from hydrophilic. This is used in mineral processing, paper recycling and waste-water ...G

Gold mining WikipediaUsing a sluice box to extract gold from placer deposits has long been a very common practice in prospecting and small-scale mining. A sluice box is essentially a man ...Gol

KotakuLuke Plunkett. Luke Plunkett is a Contributing Editor based in Canberra, Australia. He has written a book on cosplay, designed a game about airplanes, and also runs ...KotakuAtomega is a

Gold mining WikipediaGold mining is the resource extraction of gold by mining. As of 2016, the world's largest gold producer was China with 463.7 tonnes. The second-largest producer ...Gold Wik