[Nhcoll-l] Storing and or displaying pyrite

[Paul Mayer]

Hi Leslie,

Here is an article by Chris Tacker at NCMNS that you might find useful.

https://palaeo-electronica.org/content/2020/3159-pyrite-disease

Paul

__________________________
Paul Mayer
Collections Manager
Fossil Invertebrates
Gantz Family Collections Center
Science and Education

*Primary Number (Cell)*
*312 401-2081*

Office Phone
312.665.7631

The Field Museum
1400 S. Jean-Baptiste Pointe DuSable Lake Shore Drive
Chicago, IL 60605-2429
fieldmuseum.org

pmayer at fieldmuseum.org




On Tue, Apr 18, 2023 at 11:27 AM Leslie L Skibinski <lls94 at cornell.edu>
wrote:

> Hello everyone,
>
>
>
> We have just gotten some fossils where the organism has been replaced with
> pyrite (FeS2).  Because of this, they are inherently unstable and very
> prone to pyrite disease.  Just in the short time we have had them, they
> have started to become less shiny (oxidize).
>
>
>
> Has anyone had experience with storing pyrite?  Are there ways of
> packaging or storing the specimens that reduce oxygen and help maintain a
> stable low relative humidity?  Should we use a molecular sieve or is silica
> gel OK. Has anyone worked with a fabricator to design and produce a storage
> or exhibit case?  Would storing the specimens in an anoxic environment such
> as storing them in nitrogen or some inert gas be feasible and reasonably
> cost effective?
>
>
>
> Any information or suggestions would be greatly appreciated.
>
>
>
> --Leslie
>
>
>
> Leslie L. Skibinski
>
> Collection Manager
>
>
>
> Paleontological Research Institution
>
> 1259 Trumansburg Road
>
> Ithaca, New York  14850
>
> Phone:  (607) 273-6623  ext. 128
>
> Fax:  (607) 273-6620
>
>
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