|Release date||17 October 2005 (Update)|
|Quest item?||Mourning's Ends Part II|
|Alchemy||Cannot be alchemised|
|Destroy||Resetting the light maze will generate a new crystal.|
|Store price||Not sold|
|Examine||A yellow crystal.|
The Yellow crystal is used in Mourning's Ends Part II to change the light beams colour to yellow. It is obtained by pulling a lever in the Temple of Light near the start of the quest and is needed to solve the light puzzle in the Temple.