Found this in a roll the other day. Could it be an annealing error? For reference I included a pic of a slabbed specimen that I own (seller's pic) since my phone doesn't take very good pictures. In hand it looks like the slabbed one with the soft coppery coloring. Opinions?
I agree, the copper colored areas have a spotted nature and variation in color intensity that makes me think environmental damage. The graded example shows smooth and even copper areas.
