Bloodstone Or Moss Agate Stone Pendant With Silvertone‎ Cap & Bale

In great pre-owned condition I am unsure if this is a natural or man-made stone. I did a photo search & found it resembled Bloodstone or Moss Agate, but I am not a geologist or a jeweler. There's a buildup of glue on the silvertone cap on the back, that's why it looks gold on the r side. All measurements are in the photos Any questions? Please ask me in the comment section below, thanks! Thanks for looking, sorry no trades or holds. We ship Monday through Friday rbydlr