Anyone have any idea what THIS is?

[rasdebol]

Thought it was mold but it really does not have the classic "cotton candy" or spider web look of mold. Looks more solid even a but crystalline. Pulled off with tweezers. Anyone see this before?

 

[Rwise]

Not me, I have no idea what this "pop corn" looking stuff is and I cant enlarge the pics.

 

[Ckbrew]

Idk, picture is not very clear.