[Nhcoll-l] [EXT] Rocks in a geological trail

Thu Sep 15 06:56:16 EDT 2022

Hi Gali,
Were you aware of this article, perhaps it can be of some help,
Regards,

Vicen

Ms. Vicen Carrió ACR
Geological Conservator/ Preparator
National Museums Scotland
National Museums Collection Centre
242 West Granton Road
Edinburgh EH5 1JA
+44 (0) 131 247 4254
Mobile number +44 07931727386
v.carrio at nms.ac.uk<mailto:v.carrio at nms.ac.uk>

Note: My normal working days are Mondays to Thursdays

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Dedicated collector: Michael Daniels and his Eocene birds | National Museums Scotland Blog (nms.ac.uk)<https://blog.nms.ac.uk/2022/08/08/dedicated-collector-michael-daniels-and-his-eocene-birds/>

From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu> On Behalf Of Gali Beiner
Sent: 15 September 2022 09:17
Cc: NHCOLL-new <Nhcoll-l at mailman.yale.edu>
Subject: Re: [Nhcoll-l] [EXT] Rocks in a geological trail

Thanks for your input, Rod, Yasemin and Valerie!

On Wed, Sep 14, 2022 at 5:00 PM Valerie Tomlinson <VTomlinson at nature.ca<mailto:VTomlinson at nature.ca>> wrote:
Hi Gali
There is no such thing as a coating that prevents vandalism, weathering, and wear in an outdoor environment. Some coatings can reduce certain kinds of damage to certain kinds of materials, but for the situation you describe I think coatings would only risk enhancing certain kinds of damage.
Since it is rocks you are talking about, I would recommend no coating, and choose only sacrificial specimens. Don’t display anything of high value, or display some sort of replica of the more high value-high interest items if that is possible (e.g. moulds of fossils). In a matter of years you will get a build up of finger grime and shiny areas of wear. I’ve seen even granite and basalt worn down by public interaction over a span of about 10 years.
That’s my 2 cents.
Valerie Tomlinson

From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu<mailto:nhcoll-l-bounces at mailman.yale.edu>> On Behalf Of Gali Beiner
Sent: Wednesday, September 14, 2022 7:59 AM
To: NHCOLL-new <Nhcoll-l at mailman.yale.edu<mailto:Nhcoll-l at mailman.yale.edu>>
Subject: [EXT][Nhcoll-l] Rocks in a geological trail

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Dear NHCOLL-listers,

I've been asked about how to enhance the preservation chances of rocks intended for display along an outdoor educational geological trail. The specimens will represent different geological time periods and the trail itself will be within a nature reserve in the desert (very hot summers, cold nights, strong exposure to elements and visitors). I'm told that the chosen specimens will be fixed within the trail, cemented there, but there are worries concerning the long term preservation considering the vagrancies of the weather plus handling (and being stepped upon?) by visitors.

Under such circumstances, not that much can be done against outright vandalism, but I was asked if there was some kind of coating that could be applied to sandstones, limestones and shales to help their preservation. Most of the materials I work with are intended for indoor use. Would the outdoor conservators on the list like to make suggestions - yes/no to coatings, which kind of coating if any?

Thanks,

Gali

--
[https://docs.google.com/a/mail.huji.ac.il/uc?id=0B5B3I3QnN7dsSzNkbGlLNDNGWG8&export=download]Gali Beiner (ACR)
Conservator, Palaeontology Lab
National Natural History Collections
The Hebrew University of Jerusalem
Berman Building, Edmond J. Safra campus, Givat Ram
Jerusalem 91904, Israel
Fax. 972-2-6585785
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--
[https://docs.google.com/a/mail.huji.ac.il/uc?id=0B5B3I3QnN7dsSzNkbGlLNDNGWG8&export=download]Gali Beiner (ACR)
Conservator, Palaeontology Lab
National Natural History Collections
The Hebrew University of Jerusalem
Berman Building, Edmond J. Safra campus, Givat Ram
Jerusalem 91904, Israel
Fax. 972-2-6585785
gali.beiner at mail.huji.ac.il<mailto:gali.beiner at mail.huji.ac.il>
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