ELI5: Explain Like I'm 5

Fengite

Okay kiddo, have you ever heard of rocks and minerals? There is a type of mineral called fengite. It is a special kind of mineral that is made up of iron, oxygen, silicon, and aluminum.

Fengite is very tiny and can only be seen with a microscope. It is formed when hot magma from deep inside the earth cools down and solidifies. When this happens, the minerals in the magma combine to form rocks.

Scientists have studied fengite and found out that it is magnetic, which means it can attract certain metals like a magnet can. They also discovered that fengite can be found in rocks that are millions of years old!

So basically, fengite is a type of mineral that is really small and magnetic, and it is formed when hot magma cools down and turns into rocks.