The difference between Rocks and Stars are that the Stars r in the sky of endless possibilities while the rocks are grounded by the very own roots of gravity. They are both of the same thing, both are based on solid, rock materials. But the only difference is that extra that makes the stars literally outshine the rocks. That is why some people are called Rockstars, they are the rocks grounded to the earth but are stars that outshine the rest.
-JeremyHo