The San Andreas Fault itself isn't a specific type of rock. Instead, it's a fault zone, a large fracture in the Earth's crust. This fault zone cuts through different types of rocks, depending on the location.

Here are some of the types of rocks found along the San Andreas Fault:

* Sedimentary rocks: These are the most common types of rocks found along the fault zone, especially in the central and southern parts. They include sandstone, shale, and conglomerate, which were formed from the accumulation and cementation of sediments.

* Metamorphic rocks: These rocks, formed from the transformation of existing rocks under heat and pressure, are also found in several areas along the fault. Examples include marble, slate, and schist.

* Igneous rocks: These rocks formed from the cooling and solidification of molten rock, are less common along the fault but are present in some areas. Examples include granite and basalt.

The specific type of rock found along the San Andreas Fault depends on the geological history of the area and the processes that have shaped the landscape over millions of years.