Sulfur Version out NOW!!:
This is part of a furnace set, consisting of 3 different furnaces: Metal, Sulfur and HQM.
Each of them will have their own colors, metal being white, sulfur being yellow and finally hqm being blue-ish.
Also, depending on the Ore, the bottom rock will vary, this one having Metal pieces. The back will have the respective resource alpha and the bottom bricks will have the mineral name.
Finally, the top will also differentiate each furnace, this one being sheet metal.