Fordite pendant necklace

Stunning round Fordite pendant set in a sterling silver bezel. Hangs from a sterling silver chain. Approximate size of fordite pendant at widest points is 36 x 19mm. 
Fordite, also known as Detroit agate or Motor City agate, is a lapidarist term for polished pieces of finely-layered paint masses from automobile factories. The masses consist of automotive paint which has hardened sufficiently to be cut and polished.