1. Classification of Ore Deposits

    The cost of extraction must thus be weighed against the metal value contained in the rock to determine what ore can be processed and what ore is of too low a grade to be worth mining. Metal ores are generally oxides , sulfides , silicates , or native metals (such as native copper ) that are not commonly concentrated in the Earth 's crust , or noble metals (not usually forming compounds) such as gold .

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  2. Types of Ore Deposits - Mineral Processing & Metallurgy

    A List to some Major Types of Ore Deposits and a link Book Download. Komatiite-associated nickel deposits. Layered mafic-ultramafic intrusion deposits. Skarn deposits. Fractionated granitoid-associated deposits. Porphyry-associated deposits. Iron oxide copper gold deposits. Syn-deformational hydrothermal and replacement deposits.

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  3. Types of Iron Ore: Hematite vs. Magnetite | INN

    In Minnesota, this type of iron ore is mined mainly in the Mesabi Range, one of the four ranges that make up the Iron Range of Minnesota. In Canada, Labrador is home to the majority of magnetite ore mining. In particular, mining companies focus on exploration and development in the iron-rich …

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  4. Different Types of Iron Ore - Mineral Processing & Metallurgy

    Iron ores are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in colour from dark grey, bright yellow, or deep purple to rusty red. The iron is usually found in the form of magnetite ( Fe 3O 4, 72.4% Fe), hematite ( Fe 2O 3, 69.9% Fe),...

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  5. What are the types of iron ore? - Quora

    Jun 17, 2016· Hematite gets its name from the Greek word for blood, haima, because of its reddish color. This is one of the types of iron ore that has very high iron content, and although the iron content of hematite itself is lower than that of magnetite, the mineral sometimes occurs in higher-grade deposits, often referred to as direct-shipping ore (DSO).

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  6. Iron ore classification: Critical insights for resource ...

    Mar 14, 2017· With a texture-based iron ore classification, you are able to understand the porosity, physical properties, mineral proportions and mineral associations of ores, increasing the efficiency of downstream processing and allowing proactive response to changing feed type.

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  7. Iron Ore: Sedimentary Rock - Pictures, Definition & More

    With a texture-based iron ore classification, you can understand the porosity, physical properties, mineral proportions and mineral associations of ores, increasing the efficiency of downstream processing and allowing a proactive response to changing feed type.

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