copper ore chrysocolla in cambrian sandstone from chalcolithic mines in the timna valley, southern israel. copper occurs naturally as native metallic copper and was known to some of the oldest civilizations on record.
if we say it is a copper oxide ore body, we are specifically saying they are ores of copper oxide, ie cuprite. that is not strictly correct. in fact, its not even remotely correct. therefore, i have reversed the edit back to say oxidised copper. i will accept oxide copper. rolinator 13:16, 5 april 2009 utc moved down - newer posts at the bottom
besides masses of copper recovered through hand-sorting, the mine ran a small stamp mill to recover finer-grained copper in ore that ran 3%. in 1870, the rich massive copper had been worked out, and the depth of the mine shafts had reached the limit of the hoisting equipment. at the same time, the price of copper dropped to $0.19 per pound .
copper extraction refers to the methods used to obtain copper from its ores.the conversion of copper consists of a series of physical and electrochemical processes. methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors. article history concentration froth flotation hydrometallurgical extraction sulfide smeltingmineral processing
automated ore sorting see also: sensor-based sorting modern, automated sorting applies optical sensors visible spectrum, near infrared, x-ray, ultraviolet , that can be coupled with electrical conductivity and magnetic susceptibility sensors, to control the mechanical separation of ore into two or more categories on an individual rock by rock basis.
dump leaching is an industrial process to extract precious metals and copper from ores. dump leaching is similar to heap leaching, however in the case of dump leaching ore is taken directly from the mine and stacked on the leach pad without crushing where, in the case of gold and silver, the dump is irrigated with a dilute cyanide solution that percolates through the ore to dissolve gold and silver. the solution containing gold and silver exits the base of the dump, is collected and precious .