* Continental crust is generally thicker than oceanic crust, averaging 30-50 kilometers compared to 5-10 kilometers for oceanic crust.

* Continental crust is predominantly composed of granitic rocks, which are lighter and less dense than the basaltic rocks found in oceanic crust.

* Continental crust is older than oceanic crust because it is less dense and therefore less likely to be subducted (pulled under) at convergent plate boundaries, where oceanic crust is recycled back into the mantle.

In summary: Continental crust is the older, thicker, and less dense layer of the Earth's crust, characterized by granitic rocks.