Instructions
Locate a gold node. You can find these nodes in the Crimson Barrens, the Forsaken Isle or the Red Lava Cliff.
Double-click the node while standing next to it to begin harvesting the gold ore within.
Stand still while the node is being harvest. Moving your character, or getting attacked, cancels the harvesting. When the blue "Success" bar at the bottom of the screen fills first, the harvesting is successful, and a gold ore is automatically placed into your inventory. If the red "Failure" bar fills first, the harvesting fails, and you receive nothing.