It can be any of the following: Thunder Stone for Jolteon, Water Stone for Vaporion, Fire Stone for Flarion.
And for other evolutions: Get eevees trust in day then leval up for Espion, get eevees trust at night and level up for Umbrion, In Dimond/Peril/Platnum : Leval up on the blizzard road for Glacion and last but not least level up in the forest for Leafion!!
evee
no Pokemon evolves with a fire stone in Pokemon platinum except eevee which turns in to flareon
metapod to butterfree evee to leafeon cacnea to cacturne
In Pokemon Diamond, Pearl, and Platinum, if you want to evolve your Evee to a Leafeon you go to the Eterna Forest You will have to level up your Evee there and once it levels up by one level, it evolves to a Leafeon. If you want a Glaceon, you level up eevee on route 217. To get a Flareon, you give Evee a Fire stone. For Vaporeon, you give it a Water stone. And for a Jolteon, you need a Thunder stone.
evee evolves into: Flareon with Fire stone Vaporeon with water stone Jolteon with thunderstone Espeon with friendship Leafeon with somthing idk Unbreon and Glaceon
Evee evolves by a stone.
Evee evolves with the water stone into Vaporeon .
evee and vulpix
It evolves evee into flareon.
evee
Shellder, Staryu, Evee, Lombre.
no Pokemon evolves with a fire stone in Pokemon platinum except eevee which turns in to flareon
evee there are more but i don't know them sorry
metapod to butterfree evee to leafeon cacnea to cacturne
poliwhirl, evee and some others
Lombre, Evee, Shellder, Staryu.
Eevee evolves into a Flareon by using a Fire Stone on Eevee.