Sunstealer
Illuminator
- Joined
- Oct 22, 2007
- Messages
- 3,128
There aren't any similarities between the spectra for thermite and WTC dust iron-microspheres that have been posted in this thread. People look at them and go oh look there's Fe in that one and Fe in that one and look there's also some Si common to them aswell and look Al too, all the while not seeing a) that other chemical elements appear in one and not the other and b) that you have to understand that the peaks can only tell you that an element is present and not what chemical compound or composition that element makes up.Is it "normal", that there are similarities in X-EDS signatures between microspheres and products of thermate? Can you produce microspheres by yourself in the labor, examine it in a microscope and come to the same result as Prof. Jones?
eg Oxygen, there appears to be lots of it in one of the traces so how much makes up SiO2, Al2O3, FeO, Fe304 etc?
You need additional information and preferably another technique to do that or at best you need the wt% or atomic % for each element (which modern EDS will produce with the inbuilt software but which hasn'tt been presented here). That should be done as standard imho because that will give a rough idea as to what compounds are present although anyone with experience would have a good idea already just not the percentages. (see Oxygen example above).
I could certainly make "iron-microspheres" in the lab by burning coal in the same way power plants do then use a magnet to remove a percentage of them. The composition of those spheres would vary with size. If coal from another area was used this again would change the composition. As for thermite I don't know. Theoretically you could do the experiment but as I've said previously you would need to do it with all known variations of thermite and then do a full analysis on each sample produced. This would be very expensive.
The problem with Prof Jones is he has come up with a very unlikely hypothesis and has not produced a proper, rigorous paper showing how iron-microspheres could have come from thermite, because he is relying on far too small a data set to come to that conclusion. Saying there is some commonality between 2 spectra is a world away from showing that the two samples are identical chemically and compositionally. It is very easy to get "sucked in" and concentrate on a tiny area when using a SEM. You have to be very careful about what you examine and why.