undergruond mineing in walls
The evolution stones in Diamond/Pearl/Platinum are the water stone, fire stone, thunder stone, moon stone, leaf stone, sun stone, dusk stone, shiny stone, and dawn stone. (Sorry if I missed one) And even though this is the opposite answer, the stone to keep Pokemon from evolving (with or without evolution stones) is the everstone. Hope this helps! :)
how should i no
To get a thunder stone, or any type of stone on Pokemon pearl, you need to go underground and look for a bit, I found this the easiest way to get stones.
A total of three Pokemon evolve using the Fire Stone: Vulpix, Eevee, and Growlithe.
You get a chimchar
The fire stone is used to evolve certain species of fire Pokemon in Pokemon Pearl, and all Pokemon games. For example, Growlithe and Vulpix require fire stones to reach their evolution state (Arcanine and Ninetaills).
EEVEE GROWLITHE and VULPIX
use a fire stone
Get a Vulpix and use Fire Stone on it!
well eevee evolves into flareon if you use a fire stone on it well eevee evolves into flareon if you use a fire stone on it
You use a fire stone on the vulpix
Well, this may not be helpful, but Fire stones evolve some fire Pokemon... Sun stones also evolve fire Pokemon, (Fire stone, Thunder stone and Water stone also evolve "Eevee", the Pokemon you get after completing sinnoh dex.
you have to use an evolution stone like a fire stone, thunderstone etc.
you can get as many as you want you have to search for it underground of sinnoh
Vulpix - Ninetales, Growlithe - Arcanine, Eevee - Flareon.
Vulpix into Ninetales & Growilthe into Arcanine & Eevee into Flareon