[meteorite-list] RE: Nice Dronino?

From: Pekka Savolainen <pekka.savolainen_at_meteoritecentral.com>
Date: Thu Nov 25 23:48:50 2004
Message-ID: <41A6B604.8010708_at_dlc.fi>

You may have right, but think Dronino have enough oxygen in it
to rust even in a full vacuum...;-

It looks to me, old Campos, Nantans and so on rust very different
way than Dronino, which destroys itself from inside out, that?s
way I used the word "boiling". Perhaps this fellow is an ancient
space-ship with a self-destroying system now activated ;-

Well, just a joke, but this really is a ruster, or better to say, blower.

best,

pekka s


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
>>>>>
>>>>>
>>>>> ______________________________________________
>>>>> Meteorite-list mailing list
>>>>> Meteorite-list_at_meteoritecentral.com
>>>>> http://six.pairlist.net/mailman/listinfo/meteorite-list
>>>>>
>>>>>
>>>>>
>>>>
>>>
>>>
>>
>
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-- 
Pekka Savolainen
Jokiharjuntie 4
FIN-71330 Rasala
FINLAND
+ 358 400 818 912
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Received on Thu 25 Nov 2004 11:50:12 PM PST