Metavolcanic rock

Okay, so imagine you have a big sandbox filled with lots of different rocks. These rocks can come in different colors and sizes, and some are harder than others.

Now, if we were to take some of these rocks and put them into a very hot and pressurized environment (like the inside of a volcano), they would start to change. They would melt and mix together, and when they cool down again they would become a new type of rock called metavolcanic rock.

Metavolcanic rock can look different than the rocks in the sandbox because it has been through some intense changes. It can be harder and denser than other rocks, and it can have unique textures and patterns. It's like if you took a bunch of Legos and melted them together in a hot oven, and when they cooled down again they became a new, tougher Lego.

Scientists study metavolcanic rocks because they can tell us a lot about the history of the Earth. They can give clues about when and where volcanoes erupted, and how the Earth's crust has changed over time. So, even though metavolcanic rock might look like just another rock in the sandbox, it's actually pretty cool and important.