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Home » Types of Rocks and Classifications – चट्टानों के प्रकार एवं वर्गीकरण

Types of Rocks and Classifications – चट्टानों के प्रकार एवं वर्गीकरण

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    Rocks are made up of individual substances, called minerals, found mostly in solid state. Rocks are classified into three major types. Three Types of Rock are

    • Igneous rocks are formed by the solidification of the molten magma, e.g., Mica, Granite etc.
    • Sedimentary rocks are formed due to accumulation of rock particles and organic matter in layers, under tremendous pressure, e.g., Gravel, Peat, Gypsum etc.
    • Metamorphic rocks were originally igneous or sedimentary but late changed due to pressure, heat or action of water, e.g., Gneiss, Marble, Quartzite etc.
    S. NoTypes of RocksOriginal RockMetamorphic
    1.IgneousGraniteGneiss
    2.IgneousBasaitGreen-stone
    3.SedimentaryLimestoneMarble
    4.SedimentaryCoalGraphite, Coal
    5.SedimentarySandstoneQuartzite
    6.SedimentaryShale/ClaySlate, Mica, Schist

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