Hitpoints historical
Prismatic crystal fragment was significantly altered after an update.
This article is retained to provide information on past elements of RuneScape.
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Prismatic crystal fragment detail

Prismatic crystal fragments were obtained from rubbing a Crystal amulet. Three could be obtained per day, and give the same amount of bonus experience as a prismatic small fallen star in any skill. They cannot be obtained by players without level 75 in each of the prerequisite skills for the quest Plague's End; if the player is lacking these levels, they will receive a prismatic crystal instead. The fragments cannot be placed in a bank.

On 4 September 2017, prismatic crystal fragments were re-purposed into enhanced prismatic crystal fragments. These are available from the Motherlode Maw and grant more experience.