Pay dirt is a mineral mined inside the Motherlode Mine.
When it is deposited into the input of the water circuit, it has a chance to become Coal ore, Gold ore, Mithril ore, Adamant ore or Runite ore, depending on if your Mining level is high enough to mine those rocks. There is also a small chance that you will receive Golden nuggets, a currency used to purchase items and upgrades from Prospector Percy.
Items produced from Pay Dirt[]
The ore received from using Pay Dirt on the Motherlode Mine water circuit depends on your Mining level.