Gelatin Crystal

Type	Boss summon
Placeable	√
Use time	45 (Very slow)
Tooltip	Summons Queen Slime
Rarity
Sell	1
Research	3 required
Use	https://terraria.gamepedia.com/File:Roar_0.wav

The appearance of the Gelatin Crystal in-game.

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 Queen Slime. It can be used at any time of day and any depth, as long as the player is in the Hallow.

Notes[edit | edit source]

The Gelatin Crystal glows pink then changes to blue and back again in a cycle, which makes it stand out among the similar-looking Crystal Shards.
It can only be used in The Hallow. Attempting to use it in any other biome will have no effects, and will not consume the item.
- It is possible to use the Gelatin Crystal in a pre-Hardmode world by using Hallowed Seeds, Holy Water, or a Clentaminator and Blue Solution to create the Hallow biome manually.
The Gelatin Crystal will generate in worlds created prior to 1.4.0.1, so it is not necessary to create a new world to obtain it.
Gelatin crystal can be generated when any Crystal Shard could be generated and has 2*1/50 (2%) to take its place.

Similar to Crystal Shards, Gelatin Crystals can be quickly farmed by placing rows of Pearlstone Blocks or Pink Ice Blocks in straight lines in the Underground Hallow.

Unlike Plantera's Bulbs, another type of naturally spawning boss-summoning item, Gelatin Crystals do not require a minimum distance between each other to generate, which can lead to two or more of them generating very close together.
The Gelatin Crystal will be identified as a Crystal Shard by the minimap, even though it is not.

Desktop 1.4.0.3: Can no longer be used to summon multiple Queen Slimes if one is already alive.