Galvorn in the 3rd Age

[Neurion]

In RotK it says of Pippin's armor "He had a small hauberk, it's rings forged of steel, maybe, and black as jet". An interesting conclusion one can draw from this is that Tolkien is perhaps hinting that the Gondorians have some way or other uncovered the technique of making Galvorn.

[Formendacil]

In RotK it says of Pippin's armor "He had a small hauberk, it's rings forged of steel, maybe, and black as jet". An interesting conclusion one can draw from this is that Tolkien is perhaps hinting that the Gondorians have some way or other uncovered the technique of making Galvorn.

Unlikely, at least in my (not always so) humble opinion.

Galvorn was specifically said to be made from the ore of a meteor. What Pippin was given to wear in Minas Tirith was obviously standard issue equipment, and there is no way that every guard in the Citadel had armour made from meteor ore.

Even if Galvorn wasn't just a peculiarity/secret of Eol's, I would consider it unlikely that it would be used by the Gondorians, if only the basis of the scarcity of its prime material. More likely, Pippin's armour was just made with some sort of metallurgic trick that blackens armour as jet.... Such thing are possible, although I am far too backwards in metallurgy to attempt to say how...