Fordite- formed by layers of automotive paint over many years. See comment for more info.

That's amazingly beautiful. Doesn't match the beauty of nature but it has its own right to its place in history. Having worked for insurance in the auto sector, I know paint can be very toxic. So, for me, the red represents the internal organs and blood of the humans who worker in the paint booth. Thanks for the history lesson and the photo. Really cool!

Wow, I never thought about the hazards that the paint workers faced. I can relate, working with granite and quartz, we face the dangers of silica poisoning in our lungs. Most often the beauty from the construction and manufacturing trades come at a cost, many never think of. Thanks for the interesting review!😄👍