Eolianite

Eolianite is just a fancy word for a type of rock that is formed by wind. You know how when you blow on sand, it moves and forms little hills? Well, imagine if the wind did that for a really long time, like centuries or even thousands of years! The wind would push sand and other tiny particles around, and eventually they would pile up and stick together to form a hard rock.

Eolianite is usually found in places where there is a lot of sand and wind, like deserts or coastal areas. It can be really interesting to look at because you can sometimes see the marks where the wind pushed the sand around. Scientists can study eolianite to learn about what the environment was like a long time ago, because it can tell us about things like how strong the wind was or how wet or dry the climate was.