Igneous Rock is divided according to models of the origin, which Igneous Rock, cooling within the crust (Intrusive), which features the origins in this format, most will be melting and cooling of magma beneath the earth's crust. When the earth's crust caused by Uplift make magma that cooling under the earth's crust. The low density was pushed up a mountain, has the characteristics of crystal clear. A coarse due to decay to mineral composition, such as Feldspar affecting decay is high. The rock in this group of accumulation landslide is a rock type and Granite.The igneous rock that cooling outer crust (Extrusive Rock) due to magma being pressurized drive out of the crib sheet are caused by the cold fast The relatively small crystals or may not crystallization. The rock in this group are a rock type, Volcanic Rock Pyroclastic.
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