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6th November 2005, 04:21 AM
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#10 |
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EAAF Staff
Join Date: Dec 2004
Location: Louisville, KY
Posts: 7,371
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After looking at it closer one more time, I now think that it may be a layer of swassa over copper with the some of the swassa being worn away. The brown parts look like copper at the first stages of oxidation (not yet green).
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