what you would probably have happen is...the pure fluffy spice would freeze precip out..but NOT the jungle spice..after you do the freeze precip..you would then evap the rest of the heptane/diethylether to get the jungle spice that didnt precip out
see you wont get ALL the diethyl out...just some of it...so the jungle spice will sit in that...and im thinking the spice will be able to freeze precip out...this is all just a guess
another thing you may try if that doesnt work is figure out a way to use an acid(im not sure what sort of acid you could use...either fumaric acid or citric acid not sure what else though..ill have to check) to drop the dmt out of the solution and then combine it with a base such as calcium hydroxide, sodium carbonate to freebase it again..and then pull with the diethyl and heptane solution...to pull out cleaner crystals
what that does is by turning the dmt into a salt..it wont be soluble in the solvent..so it will precip out..then you would pour off the solvent and let the precips dry...then mix in the base...and then add some water..stir for ten minutes or so..and you might have to let that all dry..not sure...or you could leave it wet and pull again from that
but personally..you should just smoke the jungle spice (or wait until somebody that is a bit more knowledgeable in this subject to help you figure it out)its awesome...SWIM has had amazing journeys from it