Difference between revisions of "Gemheart"

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Gemhearts occur because Investiture leaks into the anatomy of certain Rosharan species, creating an effect similar to the formation of [[atium]] on Scadrial.{{wob ref|4678}}
 
Like any gemstone that is one of the ten [[Polestone]]s, gemhearts can glow with either [[Stormlight]] or [[Voidlight]], suggesting that an animal's gemheart is the thing that enables the types of Investiture that many such animals utilize, usually involving a [[spren]] bond. A singer's gemheart, for example, contains the spren the gives itthem itstheir current [[Singer#Forms|form]], which varies depending on the type of spren he bonds.{{book ref|sa3|i|6}}
 
Humans on Roshar, even [[Surgebinder]]s with spren bonds, do not have gemhearts{{wob ref|2685}}, but those who swallow [[Yelig-nar]]{{book ref|sa3|120}} have been known to undergo several physical transformations, including having their heart and lungs replaced with a large Voidlight-filled amethyst that has been described as a "gemstone heart".{{book ref|sa3|120}} It is uncertain whether this can be considered a gemheart or not, but its nature is similar in that it is a gemstone created through Investiture and it functions as a vital part of the transformed human, who would not survive if it is destroyed.
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