Posted after imbibing the 4th kind? Crack.
But which one is the best? I vote igneous.
Which type of rock does Keyshot use for units of scale? I had assumed it was moon-rocks… but if there are only 3 kinds of rock, it must fall into this list. 
So which one did Charlie Brown get?
“I got Iraq.”
-George Bush
“I got Iraq.”
-George Bush
Aww, man… I jus’ gotta leave this one up for a couple more days. It has promise… …
There are just 2 types, rocks for skipping and rocks for throwing at glass houses.
Geology is the study of time- and pressure.
“I want a rock”
Dee Snyder, 1984
I vote igneous. They are so HOT!!!