From The Coppermind
Jump to navigation Jump to search

The Coppermind has spoilers for all of Brandon's published works, now including The Sunlit Man and Defiant. Information about books that have not yet been released, like Stormlight 5, is allowed only on meta-pages for the books themselves. For more details, see our spoiler policy. To view an earlier version of the wiki without spoilers for a book, go to the Time Machine!

Lerasium (Feruchemy).svg
Power Steal all abilities
Metal type God Metal (Preservation)
Properties Alter Spiritual DNA
World Scadrial
Universe Cosmere
Featured in Mistborn (series)
This page or section needs to be updated with new information for The Lost Metal!
Be aware that in its current state, it may not include all additional content yet.

Lerasium is a God Metal.[1] A normal person burning lerasium becomes a Mistborn of undiluted power. A Misting or Mistborn burning lerasium drastically increases their powers.[2] Feruchemists can use lerasium to store an unknown quality, and when used as a Hemalurgic spike, lerasium steals all abilities.[3]

Lerasium is notable as it is the condensed power of the Shard Preservation. The only known source were beads found at the Well of Ascension. Presumably, the name "lerasium" is inherited from Leras, the name of the original holder of the Shard Preservation, just as the name atium is inherited from Ati, the original holder of the Shard Ruin. Lerasium cannot be combined with atium to make harmonium, nor can harmonium be broken down into lerasium and atium by normal, mechanical means.[4][5][6] However, lerasium and atium can be divided from harmonium through supernatural methods.[7]

Allomantic Use[edit]

For normal people, burning lerasium forges a permanent Connection between them and Preservation, turning them into very powerful Mistborn by rewriting their spiritual DNA.[2] For people who are already Mistborn, the same effect increases their power.[8] However, turning people into Mistborn is only a side effect of burning lerasium; if someone who knew how to use it correctly were to burn it, it would have a different, as of yet unknown, effect.[9] Someone knowledgeable enough could use the rewrite of their spiritual DNA to achieve a different result than becoming a Mistborn.[10][11] Burning duralumin in conjunction with lerasium does not have any effect on the strength of the Mistborn created,[12] but the size of the bead does affect the strength of the Mistborn created.[13]

Alloys of lerasium have the side effect of turning those who burn them into Mistings of the alloy used.[14] Alloys of lerasium and other God Metals can make those who burn them gain the Investiture associated with the God Metal.[15] The primary effects of lerasium alloys are also unknown.


If someone were able to burn the amount of lerasium needed to become an Allomantic savant with the metal, they would Ascend and become the holder of Preservation, similar to what happened when Vin consumed the mists.[16] This is due to the nature of the metal as the condensed power of Preservation.

Feruchemical Use[edit]

Lerasium, when used by a Feruchemist, has unknown properties.[17]

Hemalurgic Use[edit]

When used as a Hemalurgic spike, lerasium steals all abilities, such as strength, senses, or mental acuity.[3][17][18] This wastes most of its potential.[19]


Lerasium was created by Leras.[20] Rashek collected the beads,[21] after taking the power of Preservation at the Well of Ascension, and used them to entice foreign kings to become his allies.[22] He left two beads near the Well, for reasons unknown.[23]

However, neither of these beads were used prior to the fall of the Final Empire. One bead was fed to Elend to save his life after being attacked by Leras, whose hand was directed by Kelsier, in an attempt to prevent Vin from releasing Ruin from the Well.[24][25][26] The other was stolen and consumed by Hoid, after he used the Well to transition from the Cognitive Realm to the Physical.[27][23]

Wax was later able to split ettmetal using trellium to create more lerasium, which was later used by Wax and Wayne, creating the first known Mistborns since the Lord Mistborn right after the Catacendre.[7] Kelsier wishes to use it to create an army of Mistborn to fight against the armies of Autonomy, though Harmony rejects these plans.[28]


  • If Harmony wanted to, he could produce more lerasium.[29]


  1. Shadows of Self epilogue#
  2. a b 17th Shard Interview
    Arcanum - 2010-10-03#
  3. a b Hemalurgy Table
  4. The Lost Metal chapter 13#
  5. The Lost Metal chapter 15#
  6. Skyward Houston signing
    Arcanum - 2018-11-19#
  7. a b The Lost Metal chapter 71#
  8. Firefight Seattle UBooks signing
    Arcanum - 2015-01-06#
  9. The Hero of Ages Annotations
    Arcanum - 2009-11-12#
  10. Alloy of Law 17th Shard Q&A
    Arcanum - 2011-11-05#
  11. Skyward Denver signing
    Arcanum - 2018-11-15#
  12. /r/books AMA 2015
    Arcanum - 2015-08-03#
  13. Bands of Mourning release party
    Arcanum - 2016-01-25#
  14. Calamity Philadelphia signing
    Arcanum - 2016-02-20#
  15. FanX 2018
    Arcanum - 2018-09-06#
  16. 17th Shard Forum Q&A
    Arcanum - 2012-09-27#
  17. a b The Lost Metal Ars Arcanum#
  18. JordanCon 2021
    Arcanum - 2021-07-16#
  19. Shadows of Self release party
    Arcanum - 2015-10-05#
  20. Words of Radiance Seattle signing
    Arcanum - 2014-03-08#
  21. JordanCon 2016
    Arcanum - 2016-04-23#
  22. The Hero of Ages Annotations
    Arcanum - 2010-02-25#
  23. a b Mistborn: Secret History part 2 chapter 1#
  24. The Well of Ascension chapter 58#
  25. The Well of Ascension chapter 59#
  26. Mistborn: Secret History part 2 chapter 4#
  27. Idaho Falls signing
    Arcanum - 2018-12-29#
  28. The Lost Metal epilogue 4#
  29. Firefight Miami signing
    Arcanum - 2015-01-08#
This article is still missing information. Please help The Coppermind by expanding it.