star metal / metal made from a star

[moriartylives]

Hello,

I'm looking for the proper translation of "star metal" or "metal made from a star" (with the star being feminine, if that's important). As this is the solution to a puzzle, the phrasing that has the smallest number of characters would be more preferred.

Thank you!

 

[Pacifica]

Hello,

I suggest metallum stellare.

 

[Matthaeus]

Seconded.