Final answer:
Felsic and Mafic are terms used to describe the mineral content of rocks. Mafic rocks are dark-colored and rich in minerals like pyroxene and plagioclase. Felsic rocks are light-colored and contain minerals like quartz and feldspar.
Step-by-step explanation:
Felsic and Mafic are terms that are commonly used to describe the mineral content of rocks.
Mafic rocks, such as gabbro or basalt, are rich in dark-colored minerals like pyroxene, plagioclase, and possibly olivine or amphibole.
Felsic rocks, such as granite or rhyolite, are light-colored and contain minerals like quartz, muscovite, potassium feldspar, and biotite.