Intrusive igneous rocks, also called plutonic rocks, are formed when magma cools and solidifies beneath the Earth's surface. Here are some examples of common intrusive igneous rocks:

* Granite: A light-colored, coarse-grained rock composed mainly of quartz, feldspar, and mica.

* Diorite: A medium-grained rock with a darker color than granite, often containing hornblende and plagioclase feldspar.

* Gabbro: A dark-colored, coarse-grained rock composed mainly of pyroxene and plagioclase feldspar.

* Peridotite: A dark-colored, coarse-grained rock composed mainly of olivine and pyroxene.

* Syenite: A light-colored, coarse-grained rock similar to granite but with less quartz and more alkali feldspar.

* Monzonite: An intermediate-colored, coarse-grained rock between granite and diorite.

These rocks are formed slowly deep underground, allowing large crystals to grow. This is why they typically have a coarse-grained texture.