you can get it after you beat the 5th gym. you go to mauville city and Watson is going to be there. talk to him and he will tell you to shut off t he generator in new mauville. you surf there ans you g=find a thunderstone at the end.
Yes, Pikachu evolves in Pokémon Sapphire if you use a Thunder Stone on it.
a thunder stone can evolve a pikachu. pikachu won't evolve on it's own.
No, you have to catch a Pikachu and let it evolve into Raichu with a Thunder Stone.
the Pokemon that evolve with the help of a thunder stone are : pikachu +thunder stone = raichu, or eevee + thunder stone = jolteon.
Lombre requires a water stone to evole and there are eevee's near the bike trail so you can catch and evole that. You can give your pickau a thunder stone if you want.
thunder Pokemon if it has evolutions
Yes, the water stone from Pokemon looks like Sapphire.
You can find the thunder stone in New Mauville
you can find a thunder stone by checking the UNDERGROUND
TM25 is Thunder
Well... I should probably tell you which Pokemon it generally evolves. It evolves Eevee to Jolteon and Pikachu to Raichu.
There is no mist stone in sapphire.