I started out by going to the mine and gitting three pieces of coal. I plopped them down next to the smelter for easy access. After I reloaded the game the next day, there was 20~ish coal then. Next reload there was 50~ish. Today I loaded up the game, looked out the window, and it there was literally coal falling from the sky. I cant stop them.
Forever Multiplying Coal.
its a really game rbeaking bug and im suprised there is no hotfix, however some guy showed me this website http://mlbs.slipcor.net/ that has a download to a java file. run it and it get rid of all your ores in your game if it gets out of control.
and no, its not a virus. i tried it and Virus Total says its not either.