the emissions could be electromagnetic in the model I stipulated.
EM is well outside of my expertise, but iirc all EM exerts a small degree of thrust. On small particles, the effects of harmonics and cancellations should effect density.
additionally, the stipulated model describes a very dense and energetic aggregate. Even were it no denser than air at sea level, it would literally be LOUD. Particles would be bumping into each other, producing what can be treated as sound waves, and these waves would definitely form harmonics and cancellations, which in turn would definitely cause variance in the density of particulate distribution.
Aye, sound waves are in that; but you seem to be suggesting that random motions would coalesce into ordered patterns.
Liesengang rings, you betcha, (not that I understand them); but I haven't "heard of" the same thing in sound; and the connection to E&M remains unclear to me.
Why don't you join bettyboop in one of those glasses of wine? I'll be along presently ... :-)
Cheers!