you can get as many as you want you have to search for it underground of sinnoh
undergruond mineing in walls
Evee - Flareon Vulpix - Ninetales Growlithe - Arcanine
You get a chimchar
You can get a Fire stone,a Water stone and a Thunder stone in one of the rocks.You can also find those in Diamond and Pearl.
you have to take it from Pokemon fire red or leaf green...they are not actually in the storyline for Pokemon diamond and pearl
You can get the thunder stone by going underground and digging for it in Pokemon diamond/pearl ( the thunder stone , fire stone, water stone, and the leaf stone is very rare, so good luck!).
You cant buy any fire stones in pearl or diamond but you can find them underground by digging into walls. They are easer to dig up after you get the national-dex. Hope i helped!
fire stone evee
You can find then in the underground.
You have to go to the underground.
A total of three Pokemon evolve using the Fire Stone: Vulpix, Eevee, and Growlithe.
You cnnot catch it in Pokemon fire red ,but you can catch it in Pokemon Diamond and Pearl.If you want it to be in your fire red,you will have to migrate it from your Diamond/pearl to your fire red.