An inclusion in an igneous rock of a rock of different composition to the host rock
a piece of the surrounding rock that was broken off and dropped into the granite (or any other igneous intrusion) while it was still molten, from xeno "foreign" and lith "rock"
A piece of pre-existing rock found within an igneous rock, often composed of pieces of country rock into which magma was intruded
-Rock fragments from a different type of rock that are imbedded in a granitic rock