The permit of a met all(prenominal)ic element from a particular mineral or ore is the mass of metal that can be obtained from a particular mass of the mineral or ore, and is often express as a percentage. It is possible to use formulae to calculate/ expect yields of metals from particular minerals (pure compounds), for ores we have to measure them experimentally. This is because ores are mixtures of the required mineral and unwanted material, and, being mixtures, they have variable composition.
Measurement of the yield from a particular ore body is extremely important in the mining and minerals industry because it determines whether extraction of the metal from that ore is doughable or not. Whenever a new ore body is found, samples must be canvass to determine the likely yield of the metal from it, and hence to take root whether it is stintingally worthwhile to mine and branch the ore. The price that the metal can be sold for (which can differ depending upon economic conditions) is also a major factor in make that decision.
As seen from above, crucial planning needs to be do prior to opening the mine so that a profit will be made in the end. The total income veritable from selling the minerals need to be greater than all the cost involved.
These costs include, the wages of the miners, surveyors and financial analyzers, the costs of the mining process itself including the clearing of land and digging, the costs of buying and running the vehicles and equipment and eventually the costs of the environmental rehabilitation.
recycling of metalsMetal ores are non-renewable resources. They were formed when the estate was formed and there is no way of forming any more of them. While we are unlikely to use up all the known reserves of metal ores...
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