[Nhcoll-l] freezing amber

[Demouthe, Jean]

Dear Colleagues:

Most of our amber is held by the Entomology department, who freeze everything before putting it in the collection room.  Every time anything goes out, it gets refrozen.

I am looking for information or references on the effects of freezing and/or repeated freezing on amber.

Assume the conditions are:  48 hours at <0o C.

Any help you can give me will be greatly appreciated.

Jean




Dr. Jean F. DeMouthe
Senior Collections Manager for Geology
California Academy of Sciences
55 Music Concourse Drive
San Francisco, California 94118
415-379-5258
jdemouthe at calacademy.org

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