Lerasium
Lerasium is one of the two god metals. A normal person burning lerasium becomes a Mistborn. A Misting or Mistborn burning lerasium drastically increases their powers. Feruchemists can use lerasium to store an unknown quality, and when used as a Hemalurgic spike, lerasium steals an unknown quality.
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.
Allomantic Use
For normal people, burning lerasium forges a permanent connection between them and Preservation, turning them into a very powerful Mistborn. For people who are already Mistborn it increases their power. 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.Template:Annotation ref Burning duralumin in conjunction with lerasium does not have any effect on the strength of the Mistborn created.[1]
Alloys of lerasium have the side effect of turning those who burn them into Mistings of the metal lerasium is alloyed with. The primary effects of lerasium alloys is also unknown.
It is also theorized by the same person that theorized the duralumin strategy that burning a massive amount of lerasium would increase the Allomancer in question to godlike power.
Feruchemical Use
Lerasium, when used by a Feruchemist, has unknown properties.
Hemalurgic Use
When used as a Hemalurgic spike, lerasium steals some unknown trait or quality.