Pay-dirt is obtained whilst mining ore veins within the Motherlode Mine. Mining pay-dirt grants 60 Mining experience and requires a minimum Mining level of 30. Pay-dirt can be cleaned by depositing them into the hopper in the centre of the mine. Once cleaned players must search a sack to claim their ores, which is dependent on the player's Mining level. Pay-dirt cannot be deposited in the bank.
Players have a 7:255 (2.74%) chance of obtaining a golden nugget per pay-dirt[1], which can be used to purchase the prospector outfit from Prospector Percy's Nugget Shop.
What the pay-dirt becomes is determined at the time it is mined. If using a temporary boost, to try to get ore above your level, use the boost while mining, as opposed to using the boost at the hopper and sack.
References
- ↑ Mod Ash. "Gold nugget rates." June 8 2015. Twitter Forums.