This mod adds customizable poor ores to worldgen. It is heavily inspired by the DenseOres mod by RWTema and by the poor ores added by Railcraft.
After mining you can smelt the poor ores into nuggets and combine 9 of these nuggets int the corresponding “normal” item you would get by smelting the original ore.
poor variants of the vanilla ores (original ore on top)
Download PoorOres Mod 1.7.10