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
[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
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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/48262...@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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