Ditanite
From superman.nu: Supermanica
Revision as of 20:47, 30 July 2011 by MatterEaterLad (Talk | contribs)
Ditanite
Ditanite is the only substance to which Marsboy (a superhero almost identical to Superboy but living on the planet Mars) is not invulnerable and it affects him exactly as kryptonite affects Superboy (SB No. 16/3, Sep/Oct 1951: "Superboy on Mars").
