Just like a normal forge mod.
Go panning in shallow rivers for gold. There are two pans, wood and iron. Iron is better than wood. Right-clicking on a piece of dirt with water above it will usually result in you finding sludge; however, you can rarely find gold.
Wood Pan-basic pan
Iron Pan-better luck that wood pan
Sludge-leftover waste from panning, can be smelted into bricks
Gold and Iron* dust-each worth 1/9 of a nugget
Gold and Iron* cluster-each worth 3 nuggets
*Iron versions can only be obtained by crafting and have no uses
Using it will result in gold dust 1/7 of the time, and sludge 6/7 of the time
Can be used in furnace for 800 seconds (same as 3 planks)
It has a durability of 150 (Planned)
Using it will result in a gold cluster 1/12 of the time, a gold nugget 2/12 of the time, gold dust 3/12 of the time, lapiz 1/12 of the time, and sludge 7/12 of the time
It has a durability of 300 (Planned)
Use JEI, or something like that for now.
None as far as I know