I think all that black junk is the powder that Daddario uses in their sealed packs to keep the "corrosion" process form happening during packaging and shipping.
Oh good, now I have an excuse for why my guitar playing sounds like shit!
An IBM copyright being visible at near-atomic levels does raise a few questions...
Awesome! I work for Rolls Royce in Norway and I wish we had cool shit like electron microscopes too!