Gold Ore is an item in Postknight that is used to upgrade items with the Blacksmith or to be exchanged with the Trader.
Gold Ore is a common item to find within the Valley of Gold. Every enemy having the potential to drop it, makes it easy to accumulate when going through any level.
Due to its very prolific nature across all the enemies in the fifth area, the best route for collection is the Cryptic Hollow due to the route having the most number of enemies.
Gold Ore is used within every set of equipment in Tier Five, eventually being replaced by Mithril Ore when using the Blacksmith to upgrade Tier Six equipment.
In trading, Gold Ore is used similarly to other rare items.