What are felisic rocks?

Felsic rocks are a category of igneous rocks that are rich in silica and light-colored minerals, primarily quartz and feldspar. They typically have a high content of potassium and sodium, leading to their lighter hue and lower density compared to mafic rocks, which contain more iron and magnesium. Common examples of felsic rocks include granite and rhyolite. These rocks are often associated with continental crust and are formed from the slow crystallization of magma beneath the Earth's surface.