[meteorite-list] List of known Rusters?

[Gary Fujihara]

I wouldn't use WD40 on any mets, as it contains water and smells.  Like Al mentioned, a good low viscosity gun oil like Remington Rem-Oil wipes work well without any aroma.  As an added bonus the application wipes clean mets while lubricating them.  

Also, as Matt mentioned, there are problem and stable specimens from most any iron or pallasite meteorite.  Another factor is how they were prepared.  And its not just irons and pallasites, as I've had Ghubaras and Tsarevs that self destruct by themselves.

gary

On Dec 6, 2010, at 8:00 AM, al mitt wrote:

> Hi Ed and all,
> 
> This has been discussed before and I believe the consensus was that WD40 can have moisture in it that will promote rust. It depends on the batch but there is varying degrees of water contained in this lubricant. It might not be so good for Nantans but more stable irons like Gibeon would probably be fine.
> 
> A good grade gun oil like Birchwood brand, Barricade seems to do better in my experience but smells a bit. Bottom line here, Nantans are often unstable and may have been weathered to the point you'll never be very successful at drying them out. These are notorious rusters.
> 
> I like very much your idea of a list of meteorites that are problems specimens. Perhaps we could develop a rating system (1 to 10), (stable, mostly stable, partly stable, unstable, extremely unstable) or something similar and a listing of specimens. Even the metal in ordinary chondrites can rust. An example is Ghubara, Omen. About half of the pallasites out there are problem specimens, and a number of irons are.
> 
> Best!
> 
> --AL Mitterling
> 
> ----- Original Message ----- From: "Ed Majden" <epmajden at shaw.ca>
> To: <meteorite-list at meteoritecentral.com>
> Sent: Monday, December 06, 2010 12:28 PM
> Subject: [meteorite-list] List of known Rusters?
> 
> 
>> Does anyone have a list of known Iron meteorite rusters?  The sample  of Nantan China I have split into several pieces.  I have been using  WD40 on the pieces to retard further problems but this does not work  all that well.  Have to repeat this every few weeks!
>> Ed Majden
>> Courtenay B.C.
>> 
>> Asteroid Majden  142368   (Thanks to Rob Matson)
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Gary Fujihara
Big Kahuna Meteorites (IMCA#1693)
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