Download ppt - Rocks Rocks are aggregates of minerals Identification of Rocks is by texture and composition Texture is the size, shape and arrangement of grains Composition

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  • RocksRocks are aggregates of minerals

    Identification of Rocks is by texture and compositionTexture is the size, shape and arrangement of grainsComposition is the minerals in the rock.

  • Grain SizeFine

    Medium

    Coarse

    Glassy

  • Arrangement - Cemented

  • Arrangement - Interlocking

  • Arrangement - Foliated

    Arrangement - Frothy

  • 04_02.jpgIgneous Rocks cooling of magma or lava. Intrusive and ExtrusiveComposition: silicic, mafic, intermediate

  • Sedimentary RocksClastic cemented fragmentsCarbonates cemented shell fragmentsChemical precipitated from water interlockingComposition (Minerals): calcite, dolomite, quartz, halite

  • Regional Metamorphism - Foliation

  • 06_17.jpgContact Metamorphism of LimestoneLimestoneMarble


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