What is the hardest (least breakable/strongest) substance in the DCU?
If you can please list some objects made of this material.
(The source wall does not count)
Some candidates that I can think of at the moment:
SA Supemanís Suit, Cape, Rocket ship fragments etc.
Wonder Womanís lasso
Amazonian battle gear. (Or Atlantean)
(I also vaguely remember some kind of unbreakable girdle from the earlier issues of the recently cancelled series)
Whatever Amazo is made of.
Captain Atoms shell.
Cyborg Supermanís metal parts. (Or Cyborgís, or Metalloís)
Luthorís Battle suit. (Or Steelís or Rocket Redís)
Dwarf star fragments. (Should be extraordinary dense)