These earrings are hand made out of genuine Fordite from the Daimler Benz assembly in Portland, Oregon where they have made both Freightliner and Western Star trucks!  Uncertainty of the exact age of the material prevents us from knowing the exact model this material is from.  Measurements are in the title in millimeters. Sterling silver findings.  Shipped in a gift box with Certificate of Authenticity. I also have Fordite pendants, beads, cabochons, earrings, specimens, & rough in my other listings. 

I've been cutting varieties of Fordite for over 40 years.  Contrary to what had been believed for decades about the unavailability of new rough due to manufacturing changes, there is SOME contemporary rough that is collected and occasionally available to lapidary folks like me. I have a good stock to work with that I got from reputable dealers who assured me of its provenance.  Compare mine with other Fordite for sale on the internet! Much of it is fake and either "handmade" by just pouring pretty colors of paint together that are clearly not automotive paint colors of ANY era, or they're just striped resin beads made in China. It's not genuine Fordite.  I guarantee the authenticity of my work.  I was heavily involved in our local rock club in Michigan during the 1970's.  Rockhounds who worked in the auto industry would collect chunks of this dried, layered car paint from the factory painting booths at least as early as the late 1960's. This paint overspray build up had been baked repeatedly in curing ovens making it relatively hard and solid. It was sold at local rock and gem shows as "Fordite, Chryslerite, Buickite, Detroit Agate, etc." Fordite was by far the most common and popular name and over the years has come to be used for all industrial paint oversprays used in the jewelry trade. Those old rockhounds from back in the day would never believe what has become of their favorite novelty faux gemstone!