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

[Jimski47 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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