[meteorite-list] Rust Question about my stone meteorite.

From: Jimski47 at aol.com <Jimski47_at_meteoritecentral.com>
Date: Sat, 11 Sep 2010 07:38:57 EDT
Message-ID: <866a1.6e523cbc.39bcc451_at_aol.com>

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 Sat 11 Sep 2010 07:38:57 AM PDT