Gold Silver Energy.gov
Energy and Environmental Profile of the U.S. Department of Energy Devices used include gold pans, sluices, shaking tables, and jigs. Gravity separation alone is used at most placer mines, andbination with other methods and some lode miners. 7.1.2.3 Ore Preparation Much of the extracted ore must be milled to prepare it for further recovery activities. Uniformly sized particles may be





































