Coal

Coal is a raw material used to heat furnaces, metallurgic furnaces, crafting workshops, and campfires. Coal gets hotter than billets and is required for higher tier smelting. It is gathered by mining coal nodes at mines and scattered around the open world. Coal veins are best mined in groups of 5 or more, and veins occur at locations that have coal as their specialty. Coal's minimum temperature is 4, max temperature 6.

Also see: Gathering Resources