Kinda looks like dried grease. I couldnt say what it is. But i would like to say that your changa gave you a stronger body high because of the NMT.
"I am cursed by the blossoming knowledge of my feminine ideal and she looks suspiciously like you."
"Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid." -AE