In Pastoria City (im pretty sure) just check every house and he should be a fat guy standing next to some books. Good Luck!
just take a look at the itemlist of serebii.net
You can find Heart Scales Underground or you show a Pokemon to the man next door to the Pokemon Center in Solaceon Town. Hope this helps!
The heart scale guy is in pasroria city.
underfround while minin
you get it in the undergound
Right at the bottom.
go underground and dig for treasure with your explorer kit then go to treasure once u have it and push a on it go to put in bag Your welcome
hes not in platinum:( try ruby
Go to Pastoria city if you have Diamond, Pearl, or Platinum and give to this guy and he'll make your Pokemon remember moves. If you have Soulsilver or Heartgold, then go to Blackthorn city and go to the move deleter's house. The guy that will make your Pokemon remember moves is wearing a pink shirt and blue trousers.
in pastoria city. the house next to the water and the boats. there will also be a guy standing outside and if you talk to him he will say he is smack-dab in the middle of town(he IS NOT the move tutor).Go inside the house and there will be another guy in there(he IS the move tutor).Talk to him and if you have a heart scale he will say "that is a heart scale let me guess you want me to teach your Pokemon a move?"say yes and you will be able to choose what Pokemon,(in your party)you want to learn a move.Press A on the Pokemon and select the one witch alows you to confirm that Pokemon.Then there will be a list of moves.select the one you want(if you have four moves already then you will have to delete one)and he will teach it to your Pokemon.Afterwards, when the screen goes back to the screen where move the character it will say that your player handed over the heart scale in exchange and that where the move tutor is and how to get him to teach a move to your Pokemon.
if you get the Pokemon that the newspaper guy wants he will give you a heart scale and some rear poke balls
OK... so there is this guy in solaceon town that gives you a heart scale and 3 pokeballs. U can also find them under ground. ;D
you get them underground
You have to get a Heart Scale from the Underground and then go to the house in Pastoria city near the lake and the guy is a move relearner so you go to the guy give him the heart scale then teach Groudon Fissure and walk off happy.
you have to go over to pastoria city and give the guy inside of his house a heart scale
you use it for the move maniac who reteaches your Pokemon a moves for one heart scale
well in pastoria city theres a man in a house that makes your Pokemon remember moves and he ask for a heart scale
In Pastoria
You can find the Heart Scale under ground by using the Explorer Kit.
In heart home city
If you have a heart scale, go to a guy in Pastoria City and he will let any Pokemon learn any forgotten moves.
pastoria city