Forged Destiny [Book 7: Ch. 13]

"There was once a man who made a wish by Salem," Raven explained. "He, too, desired a powerful weapon. Salem brought this forth, claiming it was taken from a distant star. Rather unoriginally, we decided to call it Starmetal."

[...]

I shivered as my fingers ran over the unnaturally smooth metal. There was a certain hum to it, a resonant vibration that travelled up my arm. I knew instinctively that I could forge with it, and that whatever I made would be of a unique quality. Quite possibly a unique item that Remnant would never see the like of again.

—Forged Destiny [Book 7: Ch. 13]