The layer of the Earth's crust made of granite is called the continental crust.

Here's why:

* Continental crust is the thicker and less dense layer of the Earth's crust that forms the continents. It is primarily composed of felsic rocks like granite, which are rich in silica and aluminum.

* Oceanic crust is the thinner and denser layer of the Earth's crust that forms the ocean floor. It is primarily composed of mafic rocks like basalt and gabbro, which are rich in magnesium and iron.

So, while granite is not the only rock found in the continental crust, it is a major component and is what gives the continental crust its distinctive characteristics.