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how do we calculate iron ore

what is the percentage of iron in pyrite hematite siderite what is the percentage of iron in pyrite hematite siderite. Mining is the extraction of valuable minerals or other geological materials from the earth, from an orebody, lode, vein, (coal) seam or reef, which forms the ... Mineral resource classification - Wikipedia Mineral resource classification is the classification of mineral resources based on an increasing level of geological knowledge and confidence. [1] Reporting codes framework with three main categories - Exploration Results, Mineral Resources, and Mineral Reserves. how to calculate coal gcv adb - BINQ Mining Nov 10, 2012· Understanding Coal Analysis | Majari Magazine. How do you calculate GAr value if we know the GCv on ADb basis . . (GCV) of Raw coal by Bomb Calorimeter using Air Dried sample.For example, . »More detailed    Read More

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