When you look at this list, it's a bit shocking at just how small it is. It was definitely a surprise for me.
This is a list of notable fictional materials from the science fiction universe of . Like other aspects of stories in the franchise, some were recurring plot elements from one episode or series to another. The fictional metals duranium and tritanium were referred to in many episodes as extremely hard alloys used in starship hulls and hand-held tools.
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