Gold Ore Dressing

Metallurgical contentmilling history amalgamationconcentration of mineralsbulk flotationselective flotationflotation of nonmetallic mineralsorder of mineral floatabilityleaching by cyanidation before the event of ore dressing, crude ores were shipped directly to the smelters, or the refineries, with the shipper paying the freight and treatment charges.These charges varied with the type of ore.