In the first installment of the Kryptonite Chronicles, I took a look at the primary colors of Kryptonite, most of which resulted from Krypton's explosion or were altered by other cosmic phenomena (such as transformative "space clouds"). In part two, the focus will be on man-made alterations or derivations....by far the largest of the five categories.
History: Seeking an antidote for the effects of Green Kryptonite, Supergirl accidentally created a new variety that, while harmless to her, granted superpowers to her cat Streaky.
Effects: As stated, X-Kryptonite does not affect Kryptonians, but grants temporary superpowers to Earth lifeforms instead.
History: As Bizarro and the forces of Bizarro World began an invasion of Earth, Superman focused the "duplicator ray" (the same device that created Bizarro) onto a deposit of Green Kryptonite. A new "imperfect" form of Kryptonite resulted, which was harmless to Superman and other superpowered Kryptonians, but deadly to Bizarro creatures. Naturally, the Blue Kryptonite turned back the hostile army of Bizarros, and actually proved fatal to Bizarro-Supergirl (who'd just been created in this very issue).
Effects: Causes weakness and eventually death for all Bizarro creatures (both superpowered and non-superpowered) within range of its radiation. Blue Kryptonite has no effect upon superpowered Kryptonians or humans.
History: Shortly before Krypton's destruction, a time-traveling criminal named Jax-Ur altered a chunk of the planet's Jewell Mountains. As he planned, Krypton's explosion further altered the chunk into a new form of Kryptonite that Jax-Ur and his fellow Phantom Zone criminals could use against Superman.
Effects: Amplifies the psychic powers of Kryptonians in the Phantom Zone, allowing them to remotely cause explosions, project illusions, or perform mind control outside of the zone.
Effects: As an "imperfect duplicate" of standard Red Kryptonite, Bizarro Red Kryptonite triggers bizarre behavior or radical transformations in Earth humans, and not superpowered Kryptonians. The effects are non-lethal and last for 48 hours. Each piece of Bizarro Red-K causes a unique effect that cannot affect the same human the same way twice.
History: Created by the villainous Mr. Nero.
Effects: Magnetically "clings with unbreakable force" to all substances originally from Krypton while emitting the same deadly radiation as Green Kryptonite.
History: This rare Kryptonite isotope was stolen from a mineral collection of socialite Carter Hagen by a gang of criminals.
Effects: It's potent radiation will kill a superpowered Kryptonian within minutes instead of hours.
History: Created by the villain Metallo to affect humans instead of Superman.
Effects: By slowing down the rate of Green Kryptonite's particle emissions, the "slower" rays affect humans the same way Green Kryptonite affects superpowered Kryptonians.
First Appearance: DC Comics Presents #84 (1985)
History: Kryptonian criminal Zo-Mar arrived on Earth with a mysterious card that could bend the will of others to his own. Curiously, Zo-Mar did not gain superpowers on Earth, but did later when the card was taken from him. Superman deduced that the card, unknown to Zo-Mar, was laced with a mutated form of Kryptonite.
Effects: Temporarily robs any superpowered Kryptonian of their power when in close proximity to the card.
History: When a villain named the Cyborg Superman blasted the Eradicator with Green Kryptonite, the energy passed through the Kryptonian entity and struck Superman instead. Instead of weakening Superman, it restored his powers (which had been severely diminished following his "death").
Effects: Restored the ability of Superman's body to absorb solar energy, but with a price. Kryptonite-X caused Superman to absorb so much solar energy that his body mass and super powers expanded beyond his control.
History: In an alternate timeline visited by Supergirl, Pink Kryptonite is shown to temporarily turn Superman gay.
Effects: Temporarily changes heterosexual superpowered Kryptonians into homosexuals. Whether the opposite effect is true is unknown.
History: Given to Lex Luthor by Darkseid (who presumably created it).
Effects: Splits superpowered Kryptonians into two separate beings, one good and one bad.
History: An enchanted moon-shaped piece of Kryptonite is found, with an interlocking round piece found later on.
Effects: The moon-shaped piece affects Superman similar to the effects of Marijuana, which is canceled out when the round piece is united with it.
Effects: Effects of synthetic Kryptonite vary widely. Some have a lesser effect than natural Green Kryptonite, while others have had a much more powerful effect.
Effects: By precisely duplicating the radioactive wavelengths of Green Kryptonite, the Green Lantern's Kryptonite rays can be just as powerful and painful to superpowered Kryptonians as those from natural Green Kryptonite. However, the effect can be dispelled by breaking the Green Lantern's concentration, or (when such a rule was in effect) interposing anything yellow between the beam and the Kryptonian.
Stay tuned for The Alloys, part three of the The Kryptonite Chronicles!