inclusion « Back to Glossary IndexA piece of a rock that is caught up inside of another rock. Related Articles: 16 Energy and Mineral Resources4 Igneous Processes and Volcanoes5 Weathering, Erosion, and Sedimentary Rocks6 Metamorphic Rocks7 Geologic Time« Back to Glossary Index Author: Chris Associate Professor, Salt Lake Community College, Salt Lake City, Utah View all posts by Chris