Carol,

Please do not use chemicals on ANY artifacts! Glass should just be cleaned
with a toothbrush and plain water, and the patina left intact. Some day
there may be a way to date this covering.

In my early days of running an archaeology lab, someone decided to use
chemicals on an old penny. Even though I insisted that the stuff be washed
off ASAP, the chemicals remained, and in a few years, the penny was eaten
completely away.



At 02:04 PM 9/5/2003 -0700, you wrote:
>--Boundary_(ID_xV7BgdW0EtyifQ2x52Hy1g)
>Content-type: text/plain; charset="us-ascii"; format=flowed
>
>bloom.....sick glass...whatever you call it (but what IS the preferred
>term?)...

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