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Rocks and The Rock Cycle. 3 Main Rock Types. 3 Main Rock Types. Igneous. Igneous. IGNEOUS---Extrusive Little or NO Crystals!. IGNEOUS---Extrusive Little or NO Crystals!. IGNEOUS---Extrusive Little or NO Crystals!. IGNEOUS---Extrusive Little or NO Crystals!. Igneous.
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Contact Metamorphism Deep underground, zones of metamorphism form around the hot magma of batholiths. L.Gardiner/Windows Original
Regional Metamorphism Tectonic forces smash continents together. The rocks get heated and become semi-molten. The added pressure causes the mineral to separate into bands and sometime to even flow before cooling again!