Real World Kryptonite... It does exist

[Sonic1002]

http://news.yahoo.com/s/nm/20070424/od_uk_nm/oukoe_uk_britain_kryptonite

New mineral that shares Kryptonite's chemical formula - sodium lithium boron silicate hydroxide

Weird schtuff, no?

[The Xenos]

Eh. Some crap someone put on a case in Superman Returns is not cannon if you ask me.

Sodium lithium boron silicate hydroxide? WTF?! Lame. It has nothing to do with Superman. Kryptonite is an alien mineral that somehow has some weird structure that makes it radioactive and harmful to Kryptonians, but not humans.

This is just BS. Then agian, I say the same with most things from Superman returns.

[Kwick22a]

Kryptonite is an alien mineral that somehow has some weird structure that makes it radioactive and harmful to Kryptonians, but not humans.

I think Lex Luthor would probably disagree with you on that one, what with having to have his hand amputated and all.