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What are the properties of the igneous rock?

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Igneous rock, also known as volcanic rock, is formed by the cooling of magma or lava. This type of rock is classified by cooling time and the type of magma it is formed from. The properties of these rocks vary greatly, including their chemical composition, grain structure, texture and color. read more

The molten rock, or lava, has cooled to form igneous rocks. Mount Rushmore, where the Presidents' faces are carved in the mountainside, was chiseled out of granite, another igneous rock. Half Dome is an igneous rock formation in Yosemite National Park. read more

Igneous (as in ignite or fire, igne) rocks are formed when a volcano erupts, and the molten rock, known as lava above the earth's surface, (magma, below the earth's surface) cools and forms a new rock from the previous melted one. read more

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