[NHCOLL-L:1577] Re: fragmenting fossils

[Sally Shelton]

If you can provide more information re the composition of the fossils, that would help. Both Byne's "disease" and pyrite decay have specific approaches and/or treatments that are well dealt with in literature and practice, but, as noted, they are specific to the mineralogical nature of the materials. In both instances, however, you can control future deterioration with a low-RH environment. There is no way to undo the damage already done, though with pyrite decay there is a very invasive treatment to remove some of the breakdown product. More than that I can't really post without knowing what you're working with. Cheers, Sally Shelton

>>> "Larkin G. Chases" <lgc1 at humboldt.edu> 04/23/02 17:47 PM >>>
Hello, 

I was wondering if anyone could give me some advise regarding the
crystallization and fragmentation of fossils. A few of our fossils are
growing white crystals which results in the specimen crumbling. There is
also an acidic smell to the specimens. Is there a way to stop this reaction?

Also, I noticed that rusty-brown dust is appearing on some of the specimens.
Possibly iron? Is there a way to stop this?

Thank you, Larkin

****************
Larkin G. Chases
Museum Assistant
HSU Natural History Museum
1315 G Street, Arcata CA 95521
Phone: (707)826-4479