the list of misidentified chemical element names on wikipedia https://en.wikipedia.org/wiki/List_of_misidentified_chemical_elements is extremely evocative and all of them seem like they could be plausible fictional unobtaniums; they also look like they could have been generated with a recurrent neural network ("alkalinium", "berzelium", "decipium", "ptene", "wasium")
en.wikipedia.orgList of misidentified chemical elements - Wikipedia
@aparrish GMONIUM! I love it! :D
@aparrish Wish we'd seen these misidentified element names before the elements-themed #musiccollab. The working title for @masu and my track was "Oganesson", though it ended up being about one well-known and one still-theoretical element. (Which ones? I'm keeping you in suspense.)