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

From: Meteorites USA <eric_at_meteoritecentral.com>
Date: Sun, 12 Sep 2010 23:23:21 -0700
Message-ID: <4C8DC359.6020503_at_meteoritesusa.com>

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
>
>
> [meteorite-list] Rust Question about my stone meteorite.
> Jimski47 at aol.com Jimski47 at aol.com
> Sat Sep 11 07:38:57 EDT 2010
>
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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.
>
> You can try the BKF process on a chondrite fragment and use a toothbrush
> to scrub it. It should work but you might want to experiment with a cheap
> 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 02:23:21 AM PDT