This mod adds extra ores to the game like big iron chunks, big gold chunks, big coal chunks, and more. They all do the same thing, When one of the ore chunks are broken you get multiple of the ore in the name. So if you mine a iron chunk you could get 3 iron ores which can be smelted normally through a furnace. The iron chunks and coal chunks only require stone pickaxes but the gold requires a iron pickaxe and so do the diamond and lapis once there added to this mod. This mod is not yet finished so there will be updates to this mod later on. There's no crafting recipes in this mod there are only ores. The ore chunks can be found by digging underground. Coal chunks spawn the highest, iron chunks spawn around the middle, and gold and diamond chunks spawn the deepest.
You need to install forge mod loader to install this mod or it wont function properly!