You still don't get it
Levengood CONCLUDED it was "meteoric dust." That's not proposing a "theory. He concluded that simple iron filings were particles of meteoric dust. Here is exactly what he said:
"We report the unusual discovery of a natural iron "glaze" composed of fused particles of meteoritic origin, concentrated entirely within a crop formation in England, appearing shortly after the intense Perseid meteor shower in August. 1993."
All this does is prove how silly and incompetent his "work." The man can't even distinguish between iron filings and meteoric dust.
As for his "lab" it doesn't really exist. Other than including it in his title for his handful of "papers" on crop circles, one can find no other body of work or research associated with the so-called "Pinelandia Biophysical Laboratory." Its his residence and he ginned up the name simply to append to his name.
By the way, for a number of years, Levengood implied to people he had a PhD. Then he got caught and no longer does so. The man's a charlatan.