What is another word for xenolith?
Pronunciation: [zˈɛnəlˌɪθ] (IPA) 
Xenolith is a geology term used to describe a piece of rock that is foreign to the igneous rock in which it is found. Some common synonyms of xenolith include foreign rock, exotic rock, alien rock, and infiltrate. Foreign rock specifically implies that the rock is not native or typical to its environment, while exotic rock suggests a rare or unusual type of rock. Alien rock, as the name suggests, refers to a rock that is not from the same place. Lastly, infiltrate implies that the rock has intruded into its host rock, whereas other synonyms simply imply that the rock is not from the same source as the host rock.
