I've seen it with a 2nd re-x on white spice in heptane. Granted, this was accomplished by using minimal heptane, and it was cloudy (oversaturated) while it was boiling. I just dissolved the dmt in boiling heptane (i am going to throw this in now, be careful if you try this, for obvious reasons), and let it evaporate until it started clouding, then let it cool.
It wasn't just nmt, as i was using heptane, which should be less selective for that, or not solublize it at all (speculative, not scientific).
Theres also people who opt for a long slow evap crystalization instead of leveraging temperature using a warm/cold process to quickly change solubulity/saturation. I've seen some pretty impressive crystals from just leaving saturated naptha or heptane to slow evap at constant temp over a # of days or weeks. IIRC, it doesn't cause the dmt to degrade via oxidation either, as its submerged in a non-polar solvent, and not exposed to oxygen. Light/heat though must be considered.