Black kryptonite

From Smallville Wiki

Black kryptonite is a refined mineral made by heating green kryptonite to extremely high temperatures.

[edit] Effects

The full potential of black kryptonite is unknown, but it seems to have the ability to separate personalities of both humans and Kryptonians.

It is unknown whether black kryptonite affects all humans and kryptonians, or if it affects kryptonians in all states (Clark, in Crusade. He also feels the effect in Onyx, but doesn't get too close) , and affects humans only when heated to high temperatures (Lex, in Onyx. In contrast, both Martha and Chloe were not affected when it had cooled down).

Although black kryptonite can separate the personalities of a person into separate bodies, it is not known what happens to the second personality if its counterpart dies. However, one body can sustain injuries while the counterpart remains unaffected, which suggests that the death of one personality would not cause the death of another.

[edit] Season Four

Black kryptonite was discovered and manufactured by the Foundation of Dr. Swann, who sent it to Martha Kent to help after Clark was reprogrammed into Kal-El by Jor-El in an attempt to force him to fulfill his destiny. She subsequently used it to separate Kal-El from his soul. In the subsequent confrontation, Clark stabbed Kal-El with the black kryptonite, destroying his other self and causing him to be merged back into his body. When placed near Clark's possessed body, it shined a very bright electrical blue.

Lex Luthor accidentally created black kryptonite from green kryptonite turning an experiment by heating it to a very high temperature using a laser. This caused an explosion and the stone separated Lex into two different entities; one was the normal Lex, but the other his evil side, who imprisoned Lex and, having discovered Clark's secret, attempted to blackmail him into helping him conquer the Earth by use of a kryptonite ring and threatening to kill Lana. Fortunately, Clark was able to turn Alexander's green kryptonite ring into black kryptonite using his heat vision. The resultant black kryptonite affects merged the two versions of Lex back into one body, with Lex apparently retaining no memory of Alexander's actions.

[edit] Notes

• The effects of Black Kryptonite seem similar to the effects of synthetic kryptonite in Superman III where it splits Superman into two personalties, good (Clark Kent), and evil (Superman, possibly Bizarro).