A list of 5 words by arby.
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Or, sci-fi invented elements
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arby commented on the list what-superheroes-are-made-of
Ooh, vibranium is perfect! Thanks Qvaak!
October 17, 2007
qvaak commented on the list what-superheroes-are-made-of
Dunno if orichalcum counts. It's not sci-fi-invented, but still widely used (as) imaginary metal. Wikipedia doesn't mention superhero comics, just manga.But vibranium surely counts. You can't get much more superhero than that.