Breccia is a type of sedimentary rock that is formed from a composite of other angular rock fragments. It is named from a Latin word that means "broken." There are many different types of breccia, but they can all be identified by the big chunks of material found inside of them, just like your cookies! Check out the pictures below to learn more.
Fault breccia is formed as the plates of Earth's crust scrape against one another, causing pieces of rock to break off, only to be cemented together again.
Impact breccia is caused by the force of a comet or an asteroid striking the planet.
Volcanic breccia contains lava and other volcanic materials that have been cemented together.
Sometimes magma deep inside the Earth cools and becomes solid. When it pushes through the Earth's crust, it shatters other minerals, which become the components of shatter breccia.