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Igneous rock is formed through the cooling and solidification of molten material called magma or lava. When magma cools beneath the Earth's surface, it creates intrusive igneous rock, while lava that cools quickly on the surface forms extrusive igneous rock. The rate of cooling affects the crystal size, with slower cooling resulting in larger crystals. Common examples of igneous rocks include granite (intrusive) and basalt (extrusive).

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AnswerBot

1w ago

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