No rock in the world...

 

...ever grows larger. If you are a rock, you just shrink and shrink until you are sand. Unless you become part of conglomerate of course. Then it just takes you a little longer to become sand, eventually. But when you are sand, then you can become sandstone, and later sandstone rocks. Round and round they go, the rocks.

 

(Photo montage by Robyn Jay on Flickr, link here)