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Scale of tailings production is immense, since metal extraction is usually only ounces or pounds, for every ton of ore Tailings containment facilities are regarded as the world's largest man-made objects Terminology Mine tailings' size and composition depends on the mining method
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Mine tailings' size and composition depends on the mining method For hardrock metal mines, tailings are usually a very fine mud or powder, which is left over after ore is crushed and valuable minerals are extracted from it Tailings may also contain chemicals used for mineral extraction
Mining - Wikipedia, the free encyclopedia Mining is the extraction of valuable minerals or other geological materials from the earth from an orebody, lode, vein, seam, reef or placer deposits which forms the mineralized package of economic interest to the miner
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nickel ni - disadvantages of nickel mining historya silvery white lustrous metal with a slight golden tinge, nickel is a relatively new metal in humanities long experience of metallurgy the hard won ore, the miners named it kupfernickel which is a derivative of the disadvantage of
Aug 25, 2018· disadvantages of mining iron ore Xinhai Mining advantages and disadvantages of mining iron ore The iron occur in Fe mineral ores contains impurities of Phosphorus, sulphur and high alkali as well as Get Price
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Sulfide mining extracts copper, nickel, and other metals from sulfide or The environmental risks are much different from Minnesota's traditional iron ore mining, Get Price Iron (Fe) - Chemical properties, Health and Environmental effects , Advantages and disadvantages of mining metals - YouTube Jan 25, 2016 , Feb 7, 2012South Africa .
Nickel mining occurs through extractive metallurgy, which is a material science that covers various types of ore, the washing process, concentration and separation, chemical processes and ,
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The major drawback of industrial mining is the damage mining operations cause to the environment Removal of large areas of topsoil can destroy habitats, and the chemicals used in mining operations can leach into the groundwater and pollute the area
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Due to the high cost of spaceflight, inaccurate identification of asteroids suitable for mining, and ore extraction challenges, terrestrial mining remains the only means of raw mineral acquisition today , could contain more than two billion metric tons of iron–nickel ore, or two to three times the world production of 2004
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What Are the Advantages and Disadvantages of Mining? Mining gives people a portion of the resources needed for modern civilization, but it can also lead to environmental harm While some are in favor of mining due to the resources it produces and the jobs it provides in the US, some are opposed to mining based on opposition to destructive .
Mining is necessary for society as we know it Mining is generally done two ways: 1) open pit mining which strips off the surface to get to ore beneath and 2) deep shaft mining which basically tunnels down to deep deposits Both have advantages and disadvantag
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Nickel mining in New Caledonia is a major sector of the New Caledonian economy The islands contain about 7,100,000 tonnes of nickel which is about 10% of the world's nickel reserves