When molten material, known as magma, reaches the Earth's surface, it's called lava. This lava then cools and solidifies, forming extrusive igneous rocks.

Here's a breakdown:

* Magma: Molten rock found beneath the Earth's surface.

* Lava: Molten rock that has erupted onto the Earth's surface.

* Extrusive igneous rocks: Rocks formed from the cooling and solidification of lava.

Examples of extrusive igneous rocks include:

* Basalt: A dark-colored, fine-grained rock commonly found in volcanic flows.

* Rhyolite: A light-colored, fine-grained rock formed from highly viscous lava.

* Obsidian: A black, glassy rock formed from quickly cooling lava.

So, the answer to your question is extrusive igneous rocks.