Which rock composition has the most amount of silica? Silica is the most abundant mineral in felsic rocks. Quartz and feldspar are the two most abundant minerals detected in felsic rocks. A gas ...

When assimilation occurs, a magma gains country rock. It is possible for mafic magmas to melt and change from a mafic to a felsic composition by melting more felsic rock. A magma can be mixed with ...