+ purifying Corrupted Water will turn it into healing Mineral Water Taking/crafting a Diamond Mining Cell will unlock the recipes for Healing Beacons, Fans, (basic) Excavators, Lumite Mining Cells, Corruption Resistance Potions, Fire Bombs and Purification Bombs. The Healing Beacon can be crafted in your Crafting Menu (default key "Q") or at any Crafting Table in older worlds after unlocking the recipe by taking / crafting a Diamond Mining Cell. To craft 2 Healing Beacons at once you'll need (as of R22 in September 2015):