Gelatin Crystal

The Gelatin Crystal is a consumable item used to summon the Queen Slime boss. It can be found on Pearlstone or Pink Ice Blocks in the Underground Hallow. Upon breaking it, it drops the item used to summon the boss, the Queen Slime. It can be used at any time of day, and any depth as long as the player is in the Hallow. Similar to farming Crystal Shards, Gelatin Crystals can be quickly farmed by placing rows of pearlstone blocks / Pink Ice Blocks in straight lines in the Underground Hallow.