Thoughts on this Keris

[David]

Originally Posted by Ian

From Wikipedia:A very interesting small meteorite from my home state. See also here.

Ed Scott was a pioneering cosmochemist at the University of Hawaii.

This is indeed very interesting. However, it begs the question...just because edscottite has been discovered in this one sampling of meteorite, can we assume it will also be found in others. Space is about as huge a space as we can get. If this mineral was formed in the core of a now destroyed planet, what are the odds that it exists in other samples. Certainly we cannot expect that it exists in every sample of Fe-Ni meteorite. So can it ever really be used to prove a blade has been forged with meteorite. I suppose if it can be found in a blade though X-ray fluorescence (XRF) that might seem to be imply an extra-terrestrial source. But i also must point out the following:
"Edscottite is an iron carbide mineral, with the formula Fe5C2. It was previously known to occur during iron smelting, but in 2019 was identified as occurring in nature when it was discovered in a meteorite."
In other words, edscottite is not a previously unknown mineral. It has just never been found in nature on earth, but it is a by-product of smelting. So even if it is discovered to exist in a forged blade, how can we tell if it's presence there is from a nature extra-terrestrial source or simply the by-product from the smelting of terrestrial iron ore?