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Igneous rocks form from the cooling and crystallization of magma or lava. Igneous rocks can cool slowly underground or be shot hundreds of feet into the air. These rocks are classified based on...
Metamorphic rocks form from the altered product of other rocks that have undergone intense heat and pressure conditions. These rocks are classified based on whether or not they are foliated, as...
Sedimentary rocks form from the deposition and lithification of rock grains that have been eroded or transported. The size and shape of the grains can be used to identify what kind of...
