I kno there is several auto prospectors i just made this one that works just fine and easily for me, best part is it can work while WoW is minimized! all you do is make this macro:
#show Adamantite Ore
/cast Prospecting
/use Adamantite Ore
put it on action button 1 and run the bot! minimize and play something else
NOTE -- I got this idea after mining over 1500 adamantite ore in 3 nights using my Auto Miner! check it out here: Auto Miner