A '''Xenolith''' is a smaller piece of rock that is encorporated into a larger rock. Xenoliths form when [[magma]] flows round a piece of rock and hardens. Xenoliths are clearly different from the rock that surounds them.
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A '''Xenolith''' is a smaller piece of [[rock]] that is encorporated into a larger rock. Xenoliths form when [[magma]] flows round a piece of rock and hardens. Xenoliths are clearly different from the rock that surrounds them.