Placer Gold Deposit and Mining Beneficiation, · Types of placer deposit According to the landform and formation conditions, placer gold can be divided into River gold deposit, in the river bed, bank, or shoal Flood plain gold deposit, mostly large and medium-sized deposits. Terrace gold deposit, in the valley slope terrace area, most of them are the remaining parts of the original floodplain gold deposits that were eroded.Recovery of sphalerite from a high zinc grade tailing, · Therefore, a jaw crusher was used to separate the particles in the first step, followed by a roller crusher. A 10-mesh sieve (1651 μm) was applied to control the particle size. Then, a representative sample was subject to wet sieve as well as sedimentation technique ( Wills and Finch, 2015 ) (for particle less than 37 μm) to determine the particle size distribution ( Fig. 1 A).300 mesh grinding mill grinding mill Zambia, · 350tph stone crushing plant in Zambia. MORE. Near Moscow VM190K vertical mill. MORE. 200 mesh, 300 monly used quartz grinding machine are ball mill, Raymond Grinding Quartz Crusher 2500 Mesh Pakistani machine to mill quartz to 100 mesh, TON.