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Wed, 11 Aug 1999 16:37:21 -0400 |
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On Wed, 11 Aug 1999, George L. Miller wrote:
>The color that copper fires to is depend on whether or not is in an oxidizing or
>reducing atmosphere. I have seen burnt green shell edge sherds that have
>partially turned red. Clearly, not all green shell edged sherds will turn red
>when burned, but if they are in the right environment, they will oxidize to a
>different color.
Seems to me that a little experimental archaeology is in order here
(finally, something to do with all those green shell edge sherds
languishing in General Surface Collections). The main question to be
answered as I see it is whether or not there is a degree of burning to
which a sherd can be exposed which will change the color from green to red
without being otherwise noticeably affected byt the burning. I would
suspect no, else you'd think red shell edge sherds would be more common
than they are, but an interesting possibility.
Dan Marcel
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