* Granite: One of the most common and recognizable intrusive rocks. It's often used in construction and has a coarse-grained texture.
* Diorite: Another common intrusive rock, often used as a building stone. It has a medium-grained texture and a dark color.
* Gabbro: A dark-colored, coarse-grained intrusive rock. It's often found in oceanic crust.
* Peridotite: A dark, dense intrusive rock found in the Earth's mantle. It's composed mainly of olivine and pyroxene.
* Syenite: A medium-grained intrusive rock that is similar to granite, but with less quartz.
* Monzonite: A medium-grained intrusive rock that is similar to diorite, but with less plagioclase feldspar.
These are just a few examples, and there are many other types of intrusive igneous rocks.
What makes an intrusive igneous rock?
* Formation: Intrusive igneous rocks form when magma cools and solidifies beneath the Earth's surface.
* Cooling Rate: They cool slowly, allowing large crystals to form.
* Texture: This slow cooling results in a coarse-grained texture, where individual crystals are visible to the naked eye.
