@camlok,
Just because youve read something doesnt seem to me that you UNDERSTAND what you read.
Eutectics is not just a point, its an entire scale of PT relationships unique to every natural compound and alloy. Steel (ASTM A36) has a "recipe" which includes some Mo which changes the crystals from body centered to face centered(this changes their dynamics modulii an CE's). Mo showed up in the dust in a range slightly higher than just the steel. It probably camw from light fixtures an exit signs etc
DID you know that the rubble was radioctive a bit? That was from the discharges of the 3H in exit signs. It read something like 20K pi-C/g. JUST FROM EXIT SIGNS. Ive seen that the "Truthers" were BSing tht someone set off a small tactical NUKE (probably Pu due to its size requirement. ACTUALLY, the radioactivity was due to Tritium).Almost all the truthers have one thing in common. They are like our own gunga snake
1. Theyre fairly ignorant about their opinions in science
2 Wont be willing to rad and learn real science
3 They all Need to be part of some fringe belief
Its not orth our time arguing with you. You wont lern anything because you only read and listen to crap tht agrees with you