[Nhcoll-l] thoughts on "Pyrite Stop" product?

[Baars, Christian]

Hi Dee,

I had not yet heard of this product but it appears to be ethanolamine thioglycolate which is based on a treatment described by Lorraine Cornish (please see reference attached). This treatment is still in use today, although alternatives exist (e.g., ammonia - please see ammonite treatment paper attached).

In this context a new publication (also attached) may provide some answers on preventing damage to mineral and other geological specimens to avoid having to subject them to treatment - although this won't save them from historic damage of course, nor resolve the issues you mention if environmental control is not currently ideal. But treating specimens and then placing them in the same poor environments has considerable resource implications.

Best regards
Christian


Dr Christian Baars AMA ACR
Head of Collections Care

National Museums Liverpool
Conservation Centre
Midland Railway Building
1 Peter Street
Liverpool L1 6BL
Telephone: 07738 056638

My working hours may differ from yours. Please do not feel obliged to reply outside of your normal work schedule.


Dr Christian Baars
Baars, Christian
Head of Collections Care
Collections Care
0151 478

liverpoolmuseums.org.uk
@nml_muse
Find out What's On, discover more about our Venues, explore our extraordinary Collections, browse our online Shop, and read the latest Stories. 
Baars, Christian
Now more than ever, your support makes a real difference. Please consider making a donation online or in-person when visiting our venues.
National Museums Liverpool (NML) is regulated by the Department for Digital, Culture, Media and Sport (DCMS). Our Registered Office is World Museum, William Brown Street, Liverpool L3 8EN. 

See our Privacy Policy for information about our responsibiity as a data controller, whether we store data on you, how this is being used and/or to make request access. 
​
​Please note that any information sent, received or held by National Museums Liverpool (NML) may be disclosed under the Freedom of Information Act 2000. This email does not conclude a binding agreement. Any views or opinions presented in this email are solely those of the author and do not necessarily represent those of NML. Although NML routinely screens for viruses, recipients should scan this email and any attachments for viruses. NML makes no representation or warranty that this email or any of its attachments are free of viruses or defects and does not accept any responsibility for any damage caused by any virus or defect transmitted by this email. As part of conducting its business, NML may monitor and record emails and their contents passing through their network under the Telecommunications (Lawful Business Practices) and (Interception of Communications) Regulations 2000. 
From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu> On Behalf Of Dee Stubbs-Lee
Sent: 03 February 2022 14:04
To: nhcoll-l at mailman.yale.edu
Subject: [Nhcoll-l] thoughts on "Pyrite Stop" product?

Apologies for cross posting.

A colleague in our Geology and Palaeontology section has asked my opinion on a new product that has come to his attention that is being marketed as preventing or correcting pyrite disease (www.zoicpalaeotech.co.uk/products/pyrite-stop<https://www.zoicpalaeotech.co.uk/products/pyrite-stop>). As my experience with mineralogical collections is quite limited, I would like to get thoughts from colleagues on the listserv about the product's suitability for use with pyritic materials in museum mineralogical collections, particularly where both environmental control in collections storage and laboratory ventilation are sub-optimal.

Thank you,
Dee


Dee A. Stubbs-Lee, MA, CAPC
Conservator / Restauratrice
New Brunswick Museum
277 Douglas Avenue
Saint John, New Brunswick
E2K 1E5
Canada

(506) 643-2341

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.yale.edu/pipermail/nhcoll-l/attachments/20220203/b6898d99/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image009410.png
Type: image/png
Size: 7531 bytes
Desc: image009410.png
URL: <http://mailman.yale.edu/pipermail/nhcoll-l/attachments/20220203/b6898d99/attachment-0002.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image041450.png
Type: image/png
Size: 1637 bytes
Desc: image041450.png
URL: <http://mailman.yale.edu/pipermail/nhcoll-l/attachments/20220203/b6898d99/attachment-0003.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image672833.jpg
Type: image/jpeg
Size: 98021 bytes
Desc: image672833.jpg
URL: <http://mailman.yale.edu/pipermail/nhcoll-l/attachments/20220203/b6898d99/attachment-0001.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 2021 RoyceK BaarsC 2021 Defining damage and susceptibility and Introducing the Mineral Susceptibility Database.pdf
Type: application/pdf
Size: 3782227 bytes
Desc: 2021 RoyceK BaarsC 2021 Defining damage and susceptibility and Introducing the Mineral Susceptibility Database.pdf
URL: <http://mailman.yale.edu/pipermail/nhcoll-l/attachments/20220203/b6898d99/attachment-0003.pdf>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: CornishL1984 Use of ethanolamine thioglycollate in the conservation of pyritized fossils.pdf
Type: application/pdf
Size: 397538 bytes
Desc: CornishL1984 Use of ethanolamine thioglycollate in the conservation of pyritized fossils.pdf
URL: <http://mailman.yale.edu/pipermail/nhcoll-l/attachments/20220203/b6898d99/attachment-0004.pdf>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 2013 BaarsC NatSCA Conservation pyrite ammonites.pdf
Type: application/pdf
Size: 601128 bytes
Desc: 2013 BaarsC NatSCA Conservation pyrite ammonites.pdf
URL: <http://mailman.yale.edu/pipermail/nhcoll-l/attachments/20220203/b6898d99/attachment-0005.pdf>