User blog comment:Stoop Davy Dave/Multiversal Metallurgy/@comment-35249357-20200215032310

Kryptonite is an ever changing material. Sometimes it's a crystaline compound, and sometimes it's a radioactive element, depending on the universe. I'm ever painfully aware that real world chemistry and physics do not apply in the DCU; yet I still try to make sense of these things.

Superman 233. All of the Kryptonite on Earth is turned into iron; not through radioactive decay but by the explosion shockwave of a Kryptonite power source. That, to me, puts Kryptonite near Iron on the periodic table or somewhere double Iron's atomic number, plus a few protons.

This book also contains the first version of 'Jor-El's Golden Folly'; which is a fair-to-awesome story about Vaxxium's (yet unnamed in that issue) effect on Gold.

Just random thoughts on Earth-One chemistry.