Coral rag

Coral rag is kind of like a rock, but instead of being made out of just one thing, it's made up of a whole bunch of little pieces all stuck together. Imagine if you took a bunch of legos and glued them all together to make a big block of colors - that's kind of like what coral rag is.

But where do these little pieces come from to make the coral rag rock? Well, they actually come from the skeletons of tiny living things called coral polyps. These polyps build their own little homes out of calcium carbonate - the same stuff that's in things like eggshells and chalk.

Over time, many, many polyps will create their homes right next to each other to form a big reef. When the polyps die, their little homes are left behind, and over a long time, they can become stuck together to form a coral rag rock.

Now, coral rag rocks are really cool because they can be found in all sorts of different shapes and sizes - some look like giant blocks, while others look more like a pile of rubble. They can also be really colorful, with shades of pink, white, and even purple.

But while coral rag rocks might look pretty neat, it's important to remember that they come from living things that are really important to the ocean. Coral polyps are home to all sorts of sea creatures, and they also help protect coastlines from things like storms. So while we can appreciate and admire coral rag rocks, we need to remember to take care of the living things that make them possible.