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شنغهاي nmobile ncrushing nscreening nplant ... nuvold aluvial nwashing nplant nsouth nafrica. Email: [email protected] Alluvial and Placer Mineral Deposits | Geology for Investors Alluvial is the name for placer deposits formed by water action in a stream or river. For most people, it's all about alluvial deposits, or to be blunt, the ...