From this page you can find all awesome stuff that you can create with PURPLE CAVE CRYSTAL. This item belongs to misc blocks category. Plant 40, harvest 40, brake all the blocks, repeat. Received experience is a mystery. Keep an eye out for the exp counter. PURPLE CAVE CRYSTAL can be broken. Seed mathematics is very complicated, but you should get at least 1 seed back from splicing PURPLE CAVE CRYSTAL. Will you strike it rich? You just have to count the gems yourself. Blockratio of PURPLE CAVE CRYSTAL is a mystery. Maybe you can check the wiki for <a href="https://growtopia.fandom.com/wiki/Purple_Cave_Crystal">purple cave crystal</a>