If you have your Pokewalker, wild Staryu often hold a Water Stone. You can find Staryu in the following routes: Beautiful Beach and Beyond the Sea. You need 200 Watts to unlock Beautiful Beach, and Beyond the Sea is unlocked by getting a Pokemon from another country through the GTS.
The other way is to visit Bill's Grandfather (located in Route 25) and to show him the Pokemon he wants. The water Pokemon that you show him will result in him giving you a water stone.
Evee evolves with the water stone into Vaporeon .
you have to evolve it with a water stone
You have to use a water stone.
use a grass stone on eevee;-)
you find the sihny ston in mewtoo's cave
In order of how he wants to see them (based on Heart Gold and Soul Silver): Gold/Heart Gold: Oddish - Leaf Stone Growlithe - Fire Stone Pichu - Thunderstone Jigglypuff - Everstone Marill - Water Stone Silver/Soul Silver: Lickitung - Everstone Oddish - Leaf Stone Staryu - Water Stone Vulpix - Fire Stone Pichu - Thunderstone
if it's the ruins of alph that you're talking about, it's a water stone
You evolve shelder with a water stone.
You can purchase a Dawn Stone at the Pokeathlon with points on certain days.
You can get the moon stone in the cave when you are when you are heading to the Kanto Reigon.
You have to catch a Growlithe, then give it a Fire Stone. It evolves.
You find him at the Pewter city meuseam.