The focal I used is called Fordite or Detroit Agate. This material was created from years of paint build up. Layer upon layer, paint over-spray built up on metal racks that transported new car bodies through the paint shop, and into the oven, where each coat was baked hard. This process of painting cars is no longer used so the material is rare & coveted. It's a piece of Michigan history and this pendant is made by my born & raised Michigan hands!!! I love this Fordite! It's super cool because it has a crystal quartz dome on it that magnifies the Fordite!!! It's really mesmerizing to look at. This piece has a great bull's eye pattern in super shimmering color! I bezel set the cabochon ( 12mm) in fine silver .999 to a carefully shaped sterling silver abstract design background. Total height of pendant is almost 1" and 3/4" at widest. Choice of Pendant Only or with Twisted Serpentine sterling silver Chain 16", 18", 20", or 22". Thanks for looking! *Comes boxed with Fordite story card! :)