Julia,
We often use the ammonium chloride technique to photograph our
fossils. It's easy and gentle on the fossils. If you're interested,
I'm happy to share our equipment list and procedure. Just let me know.
Best,
Kapi
Kalliopi Monoyios
Scientific Illustrator
Department of Organismal Biology & Anatomy
University of Chicago
1027 E 57th Street
Chicago, IL 60637
tel: 773-834-4774
http://tiktaalik.uchicago.eduhttp://www.yourinnerfish.com
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