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

From: Martin Altmann <altmann_at_meteoritecentral.com>
Date: Mon, 13 Sep 2010 14:24:16 +0200
Message-ID: <001e01cb533e$957ebd20$c07c3760$_at_de>

Humhem...please!

No offense. It's absolutely you're private affair, what you're doing with
your meteorites.

Though in general I think it's a big No-No to manipulate stony meteorites
that way, to artificially bleach them. (Just was looking, "Bar Keeper
Friend"s main reactive agent is oxalic acid).
Stone meteorites are no irons. In my opinion such a treatment will make them
to a certain degree worthless,
as they can't be used anymore for scientific measurements.

What I would urgently expect, is to avoid, that such bleached chondrites
would be brought in circulation.
The meteorite sector, other than the minerals and fossils sector, all in all
was so far relatively spared from manipulated or fudged specimens.

It would be in my very personal opinion everything else than good, that W2,
W3, W4 material now would be pimped to be suggestive of being a W0 or a W1.

I hope we all can agree about?
Worried
Martin




-----Urspr?ngliche Nachricht-----
Von: meteorite-list-bounces at meteoritecentral.com
[mailto:meteorite-list-bounces at meteoritecentral.com] Im Auftrag von Shawn
Alan
Gesendet: Montag, 13. September 2010 07:59
An: meteorite-list at meteoritecentral.com
Cc: Jimski47 at aol.com
Betreff: [meteorite-list] Rust Question about my stone meteorite. BKF is the
best :)

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=p
4340


[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?
Next message: [meteorite-list] Rocks from Space Picture of the Day -
September 11, 2010
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

----------------------------------------------------------------------------
----
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 
______________________________________________ 
Visit the Archives at 
http://www.meteoritecentral.com/mailing-list-archives.html 
Meteorite-list mailing list 
Meteorite-list at meteoritecentral.com 
http://six.pairlist.net/mailman/listinfo/meteorite-list 
----------------------------------------------------------------------------
----
Previous message: [meteorite-list] Tunkuska Tektites? 
Next message: [meteorite-list] Rocks from Space Picture of the Day -
September 11, 2010 
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] 
----------------------------------------------------------------------------
----
More information about the Meteorite-list mailing list
?
______________________________________________
Visit the Archives at
http://www.meteoritecentral.com/mailing-list-archives.html
Meteorite-list mailing list
Meteorite-list at meteoritecentral.com
http://six.pairlist.net/mailman/listinfo/meteorite-list
Received on Mon 13 Sep 2010 08:24:16 AM PDT


Help support this free mailing list:



StumbleUpon
del.icio.us
reddit
Yahoo MyWeb