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Metamorphic rocks are formed when pre-existing rocks undergo intense heat and pressure, causing changes in their mineral composition and structure. Gneiss, phyllite, and schist are all examples of metamorphic rocks.
Gneiss is characterized by its banded appearance and is formed from the metamorphism of granite or other igneous rocks. Phyllite is a fine-grained rock that forms from the metamorphism of shale or slate. Schist is a coarse-grained rock with visible mineral grains that is formed from the metamorphism of shale or other fine-grained rocks.
Granite, on the other hand, is an example of an igneous rock. It is formed from the cooling and solidification of molten rock (magma) and does not undergo the intense heat and pressure required for the formation of metamorphic rocks.
Therefore, option 4, Granite, is not an example of a metamorphic rock.