[meteorite-list] Weeping and their meteortes WAS Nice Dronino

From: David Freeman <dfreeman_at_meteoritecentral.com>
Date: Fri Nov 26 01:02:45 2004
Message-ID: <41A6C734.7080808_at_fascination.com>

Dear List;
How about just collecting better meteorites? Isn't this the same story
as the Campo, Nantan predicament?
Isn't this sort of a case of buying a four year old car from America's
rust belt and complaining about holes that a cat can climb through?
Buy better meteorites? Much easier to complain about rust? Would seem so.

...a great project, how to stop the weeping........
of collectors and their meteorites.

DF

Jonathan Gore wrote:

> Or storing it in oil after the alcohol/NaOH bath?
>
> JKGwilliam wrote:
>
>> Have any of you who are fighting with rust/decay problems with
>> Dronino tried storing with desiccant in an airtight container after
>> treating with the alcohol/NaOH bath?
>>
>> I can remember Steve Shoner telling the list about using the
>> alcohol/NaOH solution bath. As best as I can remember, he was the
>> developer of this process and had tested it over a long period of
>> time. Two weeks in the bath might not be enough. If the solution
>> becomes discolored, put the specimen in a fresh batch of the solution
>> and remember to stir it gently every day. Some stubborn meteorites
>> might take months in the solution to produce the right effects.
>>
>> Maybe Steve can enlighten us one more time on this subject.
>>
>> Best,
>>
>> JKG
>>
>> At 09:23 PM 11/25/2004, Jonathan Gore wrote:
>>
>>> I thought it wasn't a good idea to store meteorites in plastic bags.
>>> I would think storing it in a bell jar with the air evacuated would
>>> stabilize it.
>>>
>>> Just a thought....
>>>
>>> Jonathan
>>>
>>> Pekka Savolainen wrote:
>>>
>>>> Nope, as far as I know. This mirror-polished fellow was
>>>> stored in the air-tight plastig-bag, and some 10 months it
>>>> was a real beauty. Then it started to rust very fast, or in
>>>> fact not only to rust, perhaps "boiling" is a good word for
>>>> the process...;-
>>>> The beauty today;
>>>> http://www.dlc.fi/~nuuska/dronino.jpg
>>>> best,
>>>> pekka s
>>>> Jonathan Gore wrote:
>>>>
>>>>> Would storing it in a vacuum work?
>>>>>
>>>>> Pekka Savolainen wrote:
>>>>>
>>>>>>
>>>>>> Well, have tried everything except black magic and woodoo...;-
>>>>>> Dronino is a quite old one, accordindg Verdansky from before
>>>>>> 12:th century. Main part of the pieces was found from the very
>>>>>> wet area, so I suppose, the chlorides are not the only problem...,
>>>>>> the meteorite is just too old and have spent too much time in a
>>>>>> wet soil.
>>>>>>
>>>>>> http://www.geokhi.ru/~meteorit/dronino1-e.html
>>>>>>
>>>>>> As I told in my former e-mail, after all tricks my pieces stayed
>>>>>> stable some 8 - 10 months, the pieces without any methods to
>>>>>> stabilizie them couple of weeks, not much longer.
>>>>>>
>>>>>> If some happens to find to way to stabilizate this very interresting
>>>>>> meteorite indeed, please, let me know...
>>>>>>
>>>>>> best,
>>>>>>
>>>>>> pekka s
>>>>>>
>>>>>>
>>>>>>
>>>>>> Stephen McMann wrote:
>>>>>>
>>>>>>> Dear Pekka and List,
>>>>>>>
>>>>>>> Has anyone ever tried some of the tried and true iron stabilization
>>>>>>> techniques on Dronino, such as a long bath in an alcohol and
>>>>>>> NaOH rich
>>>>>>> solution to remove chlorides? On a related subject, I guess that
>>>>>>> I may not
>>>>>>> really understand the chemistry behind why some meteorites are
>>>>>>> stable, and
>>>>>>> some are not. Perhaps I will naively ask, "Is it all about
>>>>>>> chlorides?"
>>>>>>>
>>>>>>> Sincerely,
>>>>>>>
>>>>>>> Stephen McMann
>>>>>>>
>>>>>>> -----Original Message-----
>>>>>>> From: Pekka Savolainen [mailto:pekka.savolainen_at_dlc.fi] Sent:
>>>>>>> Thursday, November 25, 2004 5:33 PM
>>>>>>> To: Stephen McMann
>>>>>>> Cc: meteorite-list_at_meteoritecentral.com
>>>>>>> Subject: Re: [meteorite-list] Nice Dronino?
>>>>>>>
>>>>>>>
>>>>>>> They are not stable. The older pieces was slag in a few weeks or
>>>>>>> months,
>>>>>>> the new "stable" ones in 8 - 10 months. I have just one very
>>>>>>> thin piece not
>>>>>>> distroyed, just because it has a quite heavy lacquer. Fastest
>>>>>>> ruster I have
>>>>>>> ever seen ;-
>>>>>>>
>>>>>>> best,
>>>>>>>
>>>>>>> pekka
>>>>>>>
>>>>>>>
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>>>>>>>
>>>>>>>
>>>>>
>>>
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>>
>>
>>
>>
>>
>>
>
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Received on Fri 26 Nov 2004 01:03:32 AM PST