* Continental crust is primarily composed of granitic rocks, not basaltic rocks. Granitic rocks are lighter and richer in silica (SiO2) than basaltic rocks.

* Quartz and feldspar are major minerals found in granitic rocks, not basaltic rocks. Basaltic rocks are typically rich in minerals like pyroxene and olivine.

In summary:

* Continental crust: Granitic, lighter, rich in quartz and feldspar.

* Oceanic crust: Basaltic, denser, richer in pyroxene and olivine.