[meteorite-list] Irons and fusion crust

[Michael Farmer]

I completely agree that iron meteorite falls have
fusion crust. Come on, they meteorites are often
covered with frothy blue-black crust, sometimes 2 or 3
mm thick, it flackes off, it was caused by the fusion
of iron minerals while burning at thousands of degrees
on entry, exactly the same way silicates form fusion
crusts on stones. Thus, we have two different types of
materials, burning, and when they land, they have a
surface of crust comprised of molten material due to
heat alteration. 
How can that not be called a fusion crust?
Michael Farmer