Extrusive and intrusive rocks are kind of what Rocks?

Extrusive and intrusive rocks are types of igneous rocks. Extrusive rocks form from lava that cools quickly on the Earth's surface, resulting in fine-grained textures, while intrusive rocks form from magma that cools slowly beneath the surface, leading to coarse-grained textures. Both types are primarily composed of minerals like quartz, feldspar, and mica, and they play a crucial role in understanding volcanic activity and Earth's geological history.