Strange tarnish on 1986 Gold Eagle???

I recently had my 1986 1/10th ounce Gold Eagle slabbed by PCGS at
MS69. Never been touched by me. The obverse is toning around the
Lady Liberty in a strange copperry blur???? Is this normal?

On Oct 11, 1:28*am, MKW wrote:
I recently had my 1986 1/10th ounce Gold Eagle slabbed by PCGS at
MS69. *Never been touched by me. *The obverse is toning around the
Lady Liberty in a strange copperry blur???? *Is this normal?

I would think so, I've seen reddish toning before. It is most likely
from the copper in the alloy.

Even 24kt, .999 or .9999 Gold has traces of copper. Its not 100%
being that its 99.9% I have seen copper spots on 24kt but not this
blur thing I have on the eagle.

On Oct 12, 9:08*am, "David Farmer" wrote:


I have a First Spouse that has a similar blemish and I thought the first
spouse's were made of 24K and shouldn't have any copper being pure gold!