ever found you have too much stone and not enough ore? maybe playing a space limit challenge like dangOreus? or just want something to do with all the stone your getting from Subsurface?
or maybe your just like me and hate having to void anything.
Either way, i have the solution for you! this mod adds recipes to turn stone into any of the 3 base ores (iron, coal, and copper) with just a little stone and steam (and makes it so you can unlock the chemical plant before you get your first oil)
By default each recipe gives a mixed set of ores (and a little stone), but you can turn that off in the settings to get just 1 output.