# Why are igneous rocks called primary rocks?

##### 1 Answer
Nov 5, 2015

As igneous rocks are formed from magma and begin the rock cycle, they are called primary rocks.

#### Explanation:

Igneous rocks are created from the cooling of molten magma/lava. All other rocks are derived from them, which is why you will also find them referred to as parent rocks on occasion.

This image is a pretty good illustration of the rock cycle:

As you can see, it starts with magma $\to$ igneous rock. From there, all other manner of rocks can be made.