I can smell the dmt in those pictures ! ... even in black and white pictures ! They remind me of the surprise one morning at swim's house, suddenly the evaporation tray looks like Christmas ! Awesome purity there - that's the spice swim shows me all the time ! So with similar purity of the dmt as shown in those photos, we can rule out the MHRB source as a big variable - no ?. Those other alkaloids were separated out by the naphtha if you get awesome crystal structure like that. Can you ever tell something about purity by its texture from freezer precipitated product ? I guess it's assumed to be good with naphtha, but other solvents too..?. I forget if I've asked already but mr 'Dabear, you have tried the yellow, oily spice too...?