i would like diffrent type of rocks pending on the deeper you dig instead of just heres your stone go to the block and turn it into what you want.
COAL,LIMESTONE,SHALE,CONGLOMERATE,SANDSTONE,GRANITE,PUMICE,GABBRO,BASALT,SCHIST,GNEISS,QUARTZITE,MARBLE,
This could be very pretty as soon of the rocks could be crystal which means crystal caverns(jewelry making ) , Coal could be useful to make steam power like locomotives and other steam turbine objects. a chance of finding diamonds in coal could happen. the chance to find gold in the bottom a river could be fun and turned into coins, jewelry
