Really awesome find. As a microscopist, I suspect I'm going to find myself trawling my gutters pretty soon... Key information from the paper: 0.3 to 0.4 mm, me

Really awesome find. As a microscopist, I suspect I'm going to find myself trawling my gutters pretty soon... Key information from the paper: 0.3 to 0.4 mm, metallic, round-ish.