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Kryptonite is a fictional material that appears primarily in Superman stories published by DC Comics. In its best-known form, it is a green, crystalline material originating from Superman's home world of Krypton that emits a unique, poisonous radiation that can weaken and even kill Kryptonians. Kryptonite radiation can be transmitted through any element except lead. There are other varieties, such as red kryptonite and gold kryptonite, which have different but still generally negative effects.

Key facts

Comics elements<! Wikipedia:WikiProject Comics >.image: Kryptonite (DC Comics).jpg
Comics elements<! Wikipedia:WikiProject Comics >.caption: Green kryptonite as seen inSuperman: Secret Origin #1. Art by Gary Frank
Comics elements<! Wikipedia:WikiProject Comics >.publisher: DC Comics
Comics elements<! Wikipedia:WikiProject Comics >.type: Element/compound
Comics elements<! Wikipedia:WikiProject Comics >.material: y
Comics elements<! Wikipedia:WikiProject Comics >.subcat: DC Comics
Comics elements<! Wikipedia:WikiProject Comics >.sortkey: Kryptonite