The Gold coin(s) are part of the MineColony mod. They are used at a Bank after you have added a Town Hall .
Gold coins can be traded for one of he following items at a Bank:
|Items gotten from trade(Amount)|
Getting Gold Coin(s)Edit
In order to get gold coins you need to either have a Crafting Table II or a Bank as shown below.
Once in the Bank you can place a Gold Ingot in on the left side and you can get Gold Coin(s) out the right side.