The Gorishi Silithid Crystal can be found in the Slithering Scar of Un'goro Crater. [43, 81]
Objective of[]
[54G] Pawn Captures Queen
Using 
[Gorishi Queen Lure] on it will summon waves of Silithid:
There are 3 waves:
- 2 level
Gorishi Hive Guards - 3 level Gorishi Hive Guards
- 2 level Gorishi Hive Guards and the level 56 Gorishi Hive Queen
The hive queen needs to be killed to get her 
[Gorishi Queen Brain].
It has been reported that the guards can be pulled separately from the queen. A tactic that has been reported successful is to pull the guards into the tunnel, to avoid the room mobs that are likely to spawn with unfortunate rapidity.