I'm trying to identify the sort of dust shown below. Several days after wiping a surface in my older apartment it shows up. It looks like synthetic fiber, yet there is no vent or isolation material that I can see, nor is there a carpet, bedding, or clothes in that room. No pet either. Any idea?
As indicated in the comments I did ask a related question regarding the origin of the dust. The answers didn't solve the problem so I'm now asking about the nature of the dust, which isn't quite the same thing. Some folks may recognize it for what it is without wondering where it came from.
Answer: It's fiberglass, see Apartment dust mystery.