Did you want to hear the joke about the mountain? Never mind, you would never get over it.
This rock was magma before it was cool.
Get it?
What do you call a benzene ring where the iron atoms replacing all of the carbon atoms?
A ferrous wheel.
Watson: Sherlock, what type of rock is this amazing specimen?
Holmes: It’s sedimentary, my dear Watson.
What do you call a rock that never goes to school? A skipping stone!
What kind of magazine does a rock like to read?
Rolling Stone.
What do you call an Irish gem that’s a fake?
A sham rock.
What do rocks eat?
Pom-a-granites.