You cannot splice this item. CRYSTAL BLOCK is in color blocks category. Growing CRYSTAL BLOCK takes 11d 14h 36m 38s. Breaking this block will give you 21 experience points. CRYSTAL BLOCK can be broken. Seed mathematics is very complicated, but you should get at least 1 seed back from splicing CRYSTAL BLOCK. Profiting with this might be questionable. Will you get enough blocks to build something? You just have to find out yourself.