I just found this penny in a coin roll and don’t know if this is an error or not. Please tell me what this is.
I'm quite sure that's a Zincoln. When they were first released, I remember playing around placing them on a glowing-red electric stove burner. It would only take seconds for them to melt, and I see no reason the same wouldn't hold true for a fire.
I highly doubt it. Copper's melting point is like 2.5x that of zinc, so if any melting was done, it would be the first to go.