Felsic rock is a type of igneous rock that is rich in silica and light-colored minerals, such as quartz, feldspar, and muscovite. Examples include granite and rhyolite. Felsic rocks are important in understanding the evolution of continental crust and the processes of magmatic differentiation.
Source Best, M. G. (2003). Igneous and Metamorphic Petrology. Wiley-Blackwell.