[meteorite-list] Rust Question about my stone meteorite. BKF is the best :)

From: Meteorites USA <eric_at_meteoritecentral.com>
Date: Sun, 12 Sep 2010 23:55:44 -0700
Message-ID: <4C8DCAF0.8070007_at_meteoritesusa.com>

Regardless of the smell, I think this might just work well on unwa
material. I'd still be hesitant to try it on rare types until I knew
more about it. I have a few meteorites I'd like to use this on. Maybe
when I get some time I'll try a few experiments. Thanks for the info Shawn.

Eric


On 9/12/2010 11:42 PM, Shawn Alan wrote:
> Hello Eric and Listers
>
>
> I did notice a slight smell from the BKF when I was baking the stone so I took it out of the oven and did another wash and did a longer alcohol bath and put it back in the over for 2 hours and now there is no smell. As for staining and residue I see non. However, I did weigh the meteorite and before I did this process it weighed 3.48g and now it weighs 3.43g. So if you have a small fragment this process could make your 1g rare meteorite a 1 gram lesser meteorite and take it out of the 1 gram and over bracket. But for what I did, the results are fantastic and losing 50mg of the meteorite was worth it, and I think the 50mg was the rust, so it was a win win situation.
>
> Shawn Alan
> IMCA 1633
> eBaystore
> http://shop.ebay.com/photophlow/m.html?_nkw=&_armrs=1&_from=&_ipg=&_trksid=p4340
>
>
>
>
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> [meteorite-list] Rust Question about my stone meteorite. BKF is the best :)
> Meteorites USA eric at meteoritesusa.com
> Mon Sep 13 02:23:21 EDT 2010
>
> Previous message: [meteorite-list] Rust Question about my stone meteorite. BKF is the best :)
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> --------------------------------------------------------------------------------
> Very nice cleaning job. Stone meteorites are more porous and absorbent
> than irons. Have you noticed any residual smells, staining, or residue?
>
> Eric
>
>
> On 9/12/2010 10:59 PM, Shawn Alan wrote:
>
>
>> Jim k and the List,
>>
>
>>
>
>>
>
>> I took your advice and used the Bar Keeper Friend on my L6 meteorite fragment to remove the rust on the surface of the meteorite due to age and I would have to say, wow, this stuff really works. The meteorite looks so much better. I can see the true color of the meteorite, I can see the texture and the gray matrix. I have a link down below of before and after images of the meteorite :) Take a look and you will be amazed of the results.
>>
>
>>
>
>> http://www.flickr.com/photos/48262799 at N03/4985819064/sizes/l/in/photostream/
>>
>
>>
>
>> Shawn Alan
>>
>
>> IMCA 1633
>>
>
>> eBaystore
>>
>
>> http://shop.ebay.com/photophlow/m.html?_nkw=&_armrs=1&_from=&_ipg=&_trksid=p4340
>>
>
>>
>
>>
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>> [meteorite-list] Rust Question about my stone meteorite.
>>
>
>> Jimski47 at aol.com Jimski47 at aol.com
>>
>
>> Sat Sep 11 07:38:57 EDT 2010
>>
>
>>
>
>> Previous message: [meteorite-list] Tunkuska Tektites?
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>> Next message: [meteorite-list] Rocks from Space Picture of the Day - September 11, 2010
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>>
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>> --------------------------------------------------------------------------------
>>
>
>> Hi Shawn,
>>
>
>>
>
>> I doubt that soaking a meteorite in alcohol will remove rust. I've used
>>
>
>> fine grit sandpaper to remove rust from slices. Lay the sandpaper on a hard
>>
>
>> flat surface and gently rub the meteorite onto the sandpaper. For removing
>>
>
>> rust from iron etched slices, I use a product called "Bar Keepers Friend",
>>
>
>> this can be found in most grocery stores cleaning supplies isle. It comes in
>>
>
>> a powder form, so you have to make a thick liquid out of it. Wet the
>>
>
>> meteorite with warm water then apply the liquid BKF. Rub it onto the meteorite
>>
>
>> with your finger gently. Rubbing to hard can damage the etch. After removing
>>
>
>> the rust, rinse the piece, soak it in alcohol and bake it dry in an oven
>>
>
>> about 200 degrees for 2 hrs.
>>
>
>>
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>> You can try the BKF process on a chondrite fragment and use a toothbrush
>>
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>> to scrub it. It should work but you might want to experiment with a cheap
>>
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>> uncl. NWA first.
>>
>
>>
>
>> Jim K
>>
>
>>
>
>> In a message dated 9/10/2010 11:14:49 P.M. Central Daylight Time,
>>
>
>> photophlow at yahoo.com writes:
>>
>
>> Hello Listers,
>>
>
>>
>
>> I have a question about rust and how to clean it off your L6 meteorite.
>>
>
>> Now can you just soak the meteorite in a 99% alcohol bath for a couple days
>>
>
>> and the rust on the surface will some what come off the surface or are there
>>
>
>> other steps?
>>
>
>>
>
>> The the size of the L6 fragment is 3.45g, so I dont have much room to work
>>
>
>> with. I used a sand/finger nail file and sanded the surface, but not sure
>>
>
>> if that made a difference and it seems that the L6 meteorite surface is
>>
>
>> stronger than the sand paper on the finger nail file.
>>
>
>>
>
>> If any Listers have some suggestions let me know please :)
>>
>
>>
>
>> Shawn Alan
>>
>
>> IMCA 1633
>>
>
>> eBaystore
>>
>
>> http://shop.ebay.com/photophlow/m.html?_nkw=&_armrs=1&_from=&_ipg=&_trksid=p
>>
>
>> 4340
>>
>
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Received on Mon 13 Sep 2010 02:55:44 AM PDT