looks like across between pla and nylon.

so be wary of this if you plan to use an open flame to heat a clogged extruder with the stuff in it. I have lit the entire back side of an 30x1000mm extruder on fire before. Some brands have flame retardants in them, but even still the stuff will ignite.
lol cos setting fire to the extruder would be my first recourse.

You're mad. :-)