Aragonite

Aragonite is a special kind of rock that is made up of tiny little things called crystals. You know how when you look closely at salt or sugar, you can see little tiny pieces that all look the same? That's kind of what aragonite looks like, but instead of tastiness, it's a rock!

Aragonite is formed when certain things in the ocean, like shellfish and coral, use a special process called "biomineralization" to make their hard outer shells or skeletons. As these things die and their shells break apart, the tiny little crystals that make up the aragonite can get together and form bigger rocks.

One cool thing about aragonite is that it is found in lots of different colors, depending on where it is from and what kind of things made it. Sometimes it is white or gray, and sometimes it can be pink, blue, or even green!

People use aragonite for all different kinds of things. Some people use it to make jewelry, like earrings or necklaces, because it is so pretty. Other people use it as a building material, because it is tough and can withstand a lot of pressure. And some people even use it to help plants grow, because it can add important nutrients to soil.

So, even though it might seem like just a boring old rock, aragonite is actually pretty special and has lots of cool uses!