Smelting

Hidden Metals
''Some metals appear to be hidden and invisible inside regular rocks that look nowhere near them. But they seem to be there, mixed inside the rocks themselves: by placing these rocks in large fire, we can reveal them. If we can master how to make larger and hotter fires, we could extract these metals from rocks at a much faster rate!''

Potential Requirements

 * Requires at least 1 Foundry.
 * Seems to requiere 2 Foundry.

Info
Smelting is a Knowledge in YMIR. It leads to more efficient smelting of ores in the foundry building.