Here's why:
* Minerals: Minerals are naturally occurring, solid substances with a defined chemical composition and a specific crystal structure.
* Aggregate: This means a collection of smaller parts that are combined together.
* Naturally occurring: This means that the rock was formed through natural processes, not human intervention.
So, a rock is a solid, naturally occurring material composed of one or more minerals. There are three main types of rocks:
* Igneous rocks form from the cooling and solidification of molten rock (magma or lava).
* Sedimentary rocks form from the accumulation and cementation of sediments, like sand, mud, or shells.
* Metamorphic rocks form when existing rocks are transformed by heat, pressure, or chemical reactions.
