However, within these categories, there are various subcategories based on their mineral composition, texture, and origin. For example, within igneous rocks, you have:
* Intrusive igneous rocks: Formed from magma that cools and solidifies below the Earth's surface.
* Extrusive igneous rocks: Formed from lava that erupts onto the Earth's surface and cools.
Similarly, sedimentary rocks are categorized based on their formation:
* Clastic sedimentary rocks: Formed from fragments of other rocks.
* Chemical sedimentary rocks: Formed from the precipitation of minerals from water.
* Organic sedimentary rocks: Formed from the accumulation of organic matter.
And metamorphic rocks are categorized based on the type of metamorphism they underwent:
* Contact metamorphism: Occurs when rocks are heated by magma.
* Regional metamorphism: Occurs over a large area due to tectonic plate movement.
So while there aren't other categories of rocks, the three main categories are quite diverse and encompass numerous subtypes.
