Art deco marcassite and onyx silver pendant

Its getting boring, I know, but once again I bought this pendant for 1 euro on a flea market!
The pendant was just sitting there with lots of crappy jewelry stuff. And when something is surrounded with junk, it gets more difficult to see the one gem thats sitting around. So I try to always keep an open mind. I m sure lots of stuff just got away with it but I m always happy when I do find something.
You all know by now that I love art deco jewelry, right? So this is my favorite pendant for the moment. I think it makes a chance of getting worn on newyears eve.
I hope you enjoy it too! And happy newyear to everybody soon.