The Quarry exists as a mining zone complete with all available ore related resources found in the Mine. The area can be accessed by crossing the bridge near the Adventurer's Guild or by taking the mine cart. The bridge must first be unlocked by completing the all the Crafts Room bundles. As it stands, it serves no other function than providing ore in a more convenient location.
Ore regenerates at a rate of approximately 3 pieces per day, though this is only when a significant amount of the ore has been mined, the rates for when approximately more than half the ore is left are currently unknown.