Oil Change - Your Thoughts on Brown Solid Particles?

[jrgill]

Looking to the group here for a little guidance. I changed the oil in my car yesterday and performed an inspection of the filter element. The good news is that a very thorough inspection finds absolutely no visible metal particles. But, I did notice about 10-12 dark brown hard particles that appear to be a form of plastic or Bakelite type material. Most, if not all, had rounded edges as seen in the picture attached. I know a lot of people have much more experience than I do with this, so any thoughts on what this could be would be helpful. Additionally, any preventative actions I should take would be appreciated.

Thanks
Joe