The most intuitive tactic for Miners would be to mine the highest collectable ore by their level (as it gives the most xp). However: * There is often competition between miners for the ores, and depending on server and time of day this can be intense * Ores take awhile to replenish themself once mined * Ores easier than the maximum one can collect are still worth significant XP - mining lesser ores while waiting (or competing) for greater ores is more time/XP efficient * Making alloys or smithmagic potions is another great source of XP Handling ore in the inventory: Places to mine: