Not possible.
you get a moon stone from a cave near cerulean city
use moon stone
You can get one in mount moon and just look around for the others
mt moon
Use a moon stone on it.
You have to go through Mt. Moon
you find them in mt.moon
You can find some in Mt. Moon
give it a moon stone
Mt moon can be found on Route 4.
? What is a dark stone?? Do you mean Moon Stone?
Who cares? that's the question