[NHCOLL-L:4145] Re: FW: Cleaning oxidized pyrite mineral specimens

[Karen Lloyd]

Is there any way to get a copy of this paper?
Thanks

Karen Lloyd
Lloyd Museum Consulting LLC

On Mon, Jan 12, 2009 at 4:28 AM, Joy Irving <joyirving at hotmail.com> wrote:

>
>
> ------------------------------
> From: joyirving at hotmail.com
> To: hodgkins at chem.ucla.edu
> Subject: RE: [NHCOLL-L:4140] Cleaning oxidized pyrite mineral specimens
> Date: Mon, 12 Jan 2009 11:20:17 +0000
>
> Dear Robyn,
>
> I've treated many pyritized mineral specimens using the ammonia treatment
> method - the definitive paper on this is : Waller R. 1987.  An Experimental
> Ammonia Gas Treatment Method for Oxidized Pyrite Mineral Specimens.
> Preprints (Working Group 13), pp. 623-630.  ICOM Committee for
> Conservation.  8th Triennial Meeting, Sydney, Australia.  6-11 Sept. 1987.
> Getty Conservation Institute, Los Angeles.
>
> Sorry, I haven't had any experience of using ethanolamine thioglycollate,
> and have never heard of Super Iron Out - but Rob Waller's paper was my
> bible!
>
> Hope this helps!
>
> Joy Irving
> Mineral Collections
> Oxford University Museum of Natural History
> Oxford
> U.K.
>
>
>
>
>
> > Date: Thu, 8 Jan 2009 16:53:35 -0800
> > From: hodgkins at chem.ucla.edu
> > To: NHCOLL-L at lists.yale.edu
> > Subject: [NHCOLL-L:4140] Cleaning oxidized pyrite mineral specimens
> >
>  > I am a UCLA chemistry graduate student helping the Natural History
> > Museum of Los Angeles County Mineral Science department. They have
> > several minerals containing iron sulfides that have become brown in
> > color. The corrosion has not been completely identified, but we believe
> > it is mainly oxidized pyrite corrosion. The Museum is interested in
> > cleaning these minerals. I have found literature about using
> > ethanolamine thioglycollate to clean. Has anyone used this or has an
> > opinion of how this would compare to Super Iron Out? thanks!
> >
> > Robyn Hodgkins
> > Graduate Student
> > Garrell Group
> > UCLA Chemistry and Biochemistry
> > hodgkins at chem.ucla.edu
> > 310-206-9434
> >
>
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