You cannot splice this item. ROCK is in terrain category. Received experience is a mystery. Keep an eye out for the exp counter. Hitting it will break it but you need to count the hits yourself. You get at least 1 seed back (maybe more!) from splicing ROCK. Profiting with this might be questionable. Blockratio of ROCK is a mystery. Maybe you can check the wiki for <a href="https://growtopia.fandom.com/wiki/Rock">rock</a>