Where do you find all the different stones in Pokemon Sapphire?

Question

I mean water stones, fire stones, etc.

Answer 1

If i'm not mistaken, there is a shard hunter house when you surf north west from mossdeep city or surf south east from lilycove city. In that house, you can trade your shard of each color for a stone. Red Shard for Fire Stone, Yellow Shard for Thunder Stone, Green Shard for Leaf Stone, and Blue Shard for Water Stone. I don't really sure because i beat pokemon sapphire game 1 year ago, but try it first! Hope this usefull...

Answer 2

I don't have the game but
I usaully would just find them on my
journey through any pokemon game.