[meteorite-list] List of known Rusters?

From: Matthias Bärmann <majbaermann_at_meteoritecentral.com>
Date: Tue, 7 Dec 2010 12:27:17 +0100
Message-ID: <CC84AF71E75E49E884536F32DF3AADE6_at_thinkcentre>

Hi list, rustophobes -

with pleasure I post here the link to our colleague Ben's Website (who isn't
list member, but reader)

http://www.aranemac.de/mets/rost.html

In cooperation with collector-friends of the
Meteorite-Mineralien-Gold-Forum.de Ben worked out a system of 5 gratuated
rust levels in regard to iron meteorites.

As the website is in German please allow me to translate the 5 (colored)
levels:

Rust Level - 1 Staying stabile for a very long time without adding
desiccants or other assistive equipment

RL - 2 Pretty indulgent, ruster are a decesive exception

RL - 3 In the most cases without problems over a few years, but one can get
a ruster as well occasionelly

RL - 4 Problematic irons, difficult to keep stabile, rusters are in majority

RL - 5 Extreme rusters, the process usually ends with complete decay;
stabile pieces are extremely rare

The rest should be self-explanatory.

Best, Matthias



----- Original Message -----
From: <almitt2 at localnet.com>
To: <meteorite-list at meteoritecentral.com>
Sent: Tuesday, December 07, 2010 11:39 AM
Subject: Re: [meteorite-list] List of known Rusters?


> Greetings,
>
> Here is a thread that WD40 was talked about in the past. You can use this
> date to go back and view all the comments. Apparently there was a prior
> thread on the same subject even further back.
>
> --AL Mitterling
>
>
>
> Re: [meteorite-list] WD-40
>
> Eric Twelker
> Thu, 02 Jun 2005 21:49:26 -0700
>
> Hello List
>
> Possibly one of the sources of the idea that WD-40 contains water is my
> preservation page. The reason I wrote this was personal experience. When
> I
> was starting out in the business, I bought a gallon can of WD-40 at the
> hardware store. I poured it into a glass container to treat some
> meteorites. In the bottom, sitting in an immiscible layer was something
> that sure looked like water to me. I didn't analyzed the layer, but when
> I
> heard that WD-40 contained water, I was convinced.
>
> Regards,
>
> Eric Twelker
> http://www.meteoritemarket.com
>
>
>
>> Hi Mark,
>>
>> Did they sum it up in 6 words?? I would like to know why it doesn't
>> contain water. If they have tanks that sit empty for any length of time
>> there is bound to be some moisture from that alone. While it may be true
>> it contains very little moisture (so the customer relations can state it
>> doesn't have water as they want you to use their product) it still may
>> contain enough to do damage to something susceptible to oxidation (like
>> meteorites).
>>
>> To say it has no moisture in it at all, well I have a hard time
>> believing that from them. Sometimes you have to really define terms and
>> break apart information to get to the truth of the matter. A few well
>> chosen words on their part really bother me.
>>
>> --AL
>> ______________________________________________
>> Meteorite-list mailing list
>> Meteorite-list at meteoritecentral.com
>> http://six.pairlist.net/mailman/listinfo/meteorite-list
>
>
>
> Quoting Meteorites USA <eric at meteoritesusa.com>:
>
>> The formula for WD40 is secret. however...
>>
>> "...WD-40 literally stands for Water Displacement, 40th attempt..."
>> http://www.wd40.com/faqs/
>>
>> WD40 does not contain water... ;)Wouldn't it seem counter intuitive to
>> add water to a product which displaces water?
>>
>> Wired Science article about the ingredients of WD40:
>> http://www.wired.com/science/discoveries/magazine/17-05/st_whatsinside
>>
>> "...What does WD-40 contain? - While the ingredients in WD-40 are secret,
>> we can tell you what WD-40 does NOT contain. WD-40 does not contain
>> silicone, kerosene, *water*, wax, graphite, chlorofluorocarbons (CFCs),
>> or any known cancer-causing agents..." http://www.wd40.com/faqs/
>>
>> Nantan has a bad rep for rusting, however, usually only the outer surface
>> of the irons are rusted. Smaller irons rust deeper into the interior of
>> the metal in relation to it's size. The level of oxidation depends on the
>> size of the specimen and partly on "where" within any given specimen the
>> slice is cut from. The treatment and prep work on a finished piece of
>> etched Nantan also plays a large part in whether it rusts or not.
>>
>> Regards,
>> Eric
>>
>>
>>
>>
>> On 12/6/2010 10:11 AM, Gary Fujihara wrote:
>>> 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)
>>>>> ______________________________________________
>>>>> Visit the Archives at
>>>>> http://www.meteoritecentral.com/mailing-list-archives.html
>>>>> Meteorite-list mailing list
>>>>> Meteorite-list at meteoritecentral.com
>>>>> http://six.pairlist.net/mailman/listinfo/meteorite-list
>>>>>
>>>> ______________________________________________
>>>> Visit the Archives at
>>>> http://www.meteoritecentral.com/mailing-list-archives.html
>>>> Meteorite-list mailing list
>>>> Meteorite-list at meteoritecentral.com
>>>> http://six.pairlist.net/mailman/listinfo/meteorite-list
>>>>
>>> Gary Fujihara
>>> Big Kahuna Meteorites (IMCA#1693)
>>> 105 Puhili Place, Hilo, Hawai'i 96720
>>> http://bigkahuna-meteorites.com/
>>> http://shop.ebay.com/fujmon/m.html
>>> (808) 640-9161
>>>
>>> ______________________________________________
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>>> Meteorite-list at meteoritecentral.com
>>> http://six.pairlist.net/mailman/listinfo/meteorite-list
>>>
>>>
>> ______________________________________________
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>> Meteorite-list mailing list
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>> http://six.pairlist.net/mailman/listinfo/meteorite-list
>
>
>
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Received on Tue 07 Dec 2010 06:27:17 AM PST