I decided to try and farm some IV stones because a couple of my Pokemon have horrible IVs for the stats they need (My Crobat has a speed IV of 2 and my Delta Gallade has an Atk. IV of 4, just to give a few examples). Yet in the hour I’ve spent trying to obtain even 1 IV stone I’ve gotten 3 Root Fossils, 1 Jaw Fossil, 1 Dome Fossil, 3 Hard Stones, 2 Soft Sands,and 3 Heart Scales, in that exact order no less. Every other rock has been a battle.
I know the IV stone has a 0.875% chance, but I have yet to see percentages for the other items stated anywhere. Does anyone have a list of percentages? After all this farming I refuse to believe that the items all have the same chance to be found.