Hello! So I get this coin (?) as a bonus from an ebay coin lot. I doubt that there is any hope identifying it, but it looks old. I have no way of weighing it, but it has a bit of heft to it, heavier than if it was just a rock. It doesn't look to even be a metal. It crumbles or flakes when scratched, but has a greenish copper tone where scratched. You can see some sort of design on one side.
I thought maybe an electrolysis treatment, but i suspect It would be destroyed.
Id love to hear what you think it might be, and what you do with coins that have no hope.