I'm amazed at how much I could understand of that. I presume ymirstuff is uranium. Many of the others are more obvious.
Odd: "Germanstuff" for Titanium.. did Poul mean Entstuff? (Didn't read enough Tolkien?)
Was perhaps actually inspired by modern German.. surprisingly, "Stoff" is from old french via early modern(!) Dutch. Proper A-S might be "andwork/anwerk[.de]"
https://en.wiktionary.org/wiki/andweorc
Cathay-andwork (for chinesium)
Unbeget-andwork (for unobtainium)
https://en.wiktionary.org/wiki/Stoff#German
Odd: "Germanstuff" for Titanium.. did Poul mean Entstuff? (Didn't read enough Tolkien?)
Was perhaps actually inspired by modern German.. surprisingly, "Stoff" is from old french via early modern(!) Dutch. Proper A-S might be "andwork/anwerk[.de]"
https://en.wiktionary.org/wiki/andweorc
Cathay-andwork (for chinesium)
Unbeget-andwork (for unobtainium)
https://en.wiktionary.org/wiki/Stoff#German