You must have SANDSTONE and STONE WALL to make GRANITE BLOCK. This item belongs to building category. Do not have caffeine after planting this one... It is going to take awhile. Breaking this block will give you 5 experience points. How many times you need to hit it? Head to the wiki for more info: granite block You get at least 1 seed back (maybe more!) from splicing GRANITE BLOCK. Gemratio of GRANITE BLOCK is a mystery. Maybe you can check the wiki for granite block Will you get enough blocks to build something? You just have to find out yourself.