Blue Kryptonite also called Blue meteor rock is a mineral from the planet Krypton that strips Kryptonians of their powers for as long as they're exposed.
Blue Kryptonite has been used in various instances for depowering Kryptonian super powers, and as objects in jewelry.
Jor-El's had a Victory Ring with Blue Kryptonite in it the day he the joined the Science Council.
Jor-El's Blue Kryptonite Victory had a clone version created by the Blue Crystal.
Dax-Ur supresses his powers with Blue Kryptonite radiation from his Blue Kryptonite bracelet.
Lana destroys Bizarro using a chunk of Blue Kryptonite from a blue meteor rock.
Jor-El uses a Blue Kryptonite Crystal to irradiate the Orb with radiation to depower the Kandorians.
Clark stabbed himself with Blue Kryptonite blade to stop himself from ascending to New Krypton, which Lois removes bringing him back to life.
During The 1989 meteor shower, Blue Kryptonite got into the water supply and gave it stronger properties. The town elders were going to burn Lois with Blue Kryptonite fire.
Deadshot uses a gun with Kryptonite bullets to tag Clark with it to track him.
Appearance[]
Whatever size they are, they look like rocks with a glaring, deep blue color.
Properties[]
Clark wasn't able to destroy the Blue Kryptonite ring with the buzzsaw at his farm.
Effects on Kryptonians[]
Blue Kryptonite strips super-powered Kryptonians of all their abilities, making them mortal and, thus, susceptible to damage and pain as with any human. It is possible that the substance does this by turning off the manifestation of genes that allow Kryptonians to process sunlight while in contact with it. This is evident as Clark was stabbed with a Blue Kryptonite knife when the Book of Rao was activated. This most likely prevented the Book from recognizing him as Kryptonian and exiling him from Earth, unlike the clones. If the DNA of a Kryptonian is irradiated with Blue Kryptonite, the resultant Kryptonian will have no power under a yellow sun. Instead, they will gain their powers under a red sun. Blue Kryptonite can also render a Kryptonian immune to the effects of Green Kryptonite, whether their DNA is irradiated by it or they are just in physical contact with it.
Jor-El's Blue Kryptonite crystal glowed dark blue under Krypton's red sun and stayed blue even after the Orb absorbed the Blue Kryptonite radiation, and didn't turn into Clear Kryptonite.
Effects on Bizarro[]
Blue Kryptonite magnifies Bizarro's powers to such an insane degree that his body can no longer withstand them, causing him to shake and explode. Brainiac remarked that it causes an exponential power increase which cannot be regulated, comparable to powering a light bulb with a nuclear reactor.
Effects on humans[]
Blue Kryptonite can drastically improve the health of any non-Kryptonian organism, such as livestock, crops, and humans. Continual consumption of Blue Kryptonite-irradiated water (caused by Blue Kryptonite landing in a lake) puts humans in a perfect state of health. However, it was also speculated that Blue Kryptonite also makes them more prone to mental irregularities, such as unquestionably accepting human sacrifice.
Like other forms of Kryptonite, Blue Kryptonite's effects can be counteracted with lead. The effect when DNA is irradiated with Blue Kryptonite can be counteracted with a super-powered Kryptonian's blood.
Notes[]
The fact that Blue Kryptonite can kill Bizarro came from the comics, where Blue Kryptonite affects Bizarros the same way Green Kryptonite affects super-powered Kryptonians.
As a specialist in Kryptonite, the blue liquid in the vial on Dr. Hamilton's desk may be Blue Kryptonite.
