[meteorite-list] collectors meteorites in research was Rust Question about my stone meteorite. BKF is the best :)

From: Galactic Stone & Ironworks <meteoritemike_at_meteoritecentral.com>
Date: Mon, 13 Sep 2010 16:11:26 -0400
Message-ID: <AANLkTinYDA71th3zGHK-E=5kX6O2EPk0shrhhN8ekCn3_at_mail.gmail.com>

Hi Peter and Tom,

And I almost forgot, I also sent samples of Chicxulub microtektites to
a researcher in Japan who used them while doing research, that
eventually ended up being published in peer-reviewed academic journal.
 So it's not very common perhaps, but it does happen. FWIW, I keep
the majority of specimens sealed in air-tight, boro-silicate glass
vials.

Best regards,

MikeG


On 9/13/10, Peter Scherff <peterscherff at rcn.com> wrote:
> Hi Tom,
>
> I provided some meteorites to a University that was studying
> "Material Properties" for the Department of Defense. The meteorites that I
> provided were irons or fusion crusted stones. I saw some great images. But I
> never learned just what the research involved due to the research being
> "classified".
>
> Thanks,
>
> Peter
>
> -----Original Message-----
> From: meteorite-list-bounces at meteoritecentral.com
> [mailto:meteorite-list-bounces at meteoritecentral.com] On Behalf Of
> Starsinthedirt at aol.com
> Sent: Monday, September 13, 2010 3:07 PM
> To: meteorite-list at meteoritecentral.com
> Subject: Re: [meteorite-list] Rust Question about my stone meteorite. BKF is
> the best :)
>
> Hi List, I must agree with Shawn on this one.
>
> Does any one know of a case where a meteorite came out of an end
> collectors collection to be used in any way in research? I am not talking
> about
> Bob's 1st Lunar or Adams giant Lunar (These guys are not the end
> collectors).
>
> Any thing that does not degrade the sample and cause damage but makes it
> more pleasant to display in ones collection is a good thing.
>
>
>
> Tom Phillips
>
> In a message dated 9/13/2010 11:48:36 A.M. Mountain Daylight Time,
> photophlow at yahoo.com writes:
> Hi Martin and Listers
>
> Martin BKF is an acid and nothing more.... The acid doesn't bleach the
> surface and the active ingredient is oxalic acid, naturally occurs in
> plants
> and animals. The acid acts like an accelerant to the surface by stripping
> away the rust. The oxalic acid is nothing more then acid rain on steroids.
> But
> in this case the rust is stripped away from the meteorite, preserving the
> meteorite.
>
> As for making the meteorite worthless for being used for science, I think
> we can leave that up to the scientists, and to be honest, I think most
> meteorites in peoples collections are void because I bet scientist have
> strict
> rules on handing and storage of meteorites. But again I am not a scientist
> nor are most people on the list. But at any rate, if a scientist was going
> to use the L6 meteorite for research, I think that they would use an acid
> as well to strip the surface away to get to the good stuff in the middle :)
>
>
> As for changing a weathered meteorite from a W4 to W0 is probably
> impossible if the meteorite is a W4. The reason is because the weathering
> isn't
> superficial and the weathering is through out the meteorite. You would have
> to
> strip down the meteorite to nothing. Now do I say that everyone go out and
> do this no, but what I do say is if your confident and know what your doing
>
> then do it because rust for a meteorite can spell trouble.
>
> As for devaluing a meteorite for research, Martin again I have to say that
> most meteorites that people own could be deemed as worthless because of
> how they are handled, cut, sliced, buffed and stored. But again I don't
> think
> we all have a science lab in our bedrooms performing science experiments
> on our meteorites. If any thing I was able to stop the process of the
> meteorite from rusting and restore the surface to its original form. In
> that
> regard I am able to identify the meteorite from its physical features now,
> making the L6 more important from a scientific observation stand point and
> because I can see the meteorite and not rust from old age.
>
> Science 101, to stop an acid one can use a neutralizer aka water
>
> 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. BKF is the best
> :)Martin Altmann altmann at meteorite-martin.de
> Mon Sep 13 08:24:16 EDT 2010
>
>
> Previous message: [meteorite-list] Rust Question about my stone meteorite.
> BKF is the best :)
> Next message: [meteorite-list] Rust Question about my stone meteorite. BKF
> isthe best :)
> Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
>
> 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
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> ----
>
>
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> September 11, 2010
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> BKF is the best :)
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> isthe best :)
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Received on Mon 13 Sep 2010 04:11:26 PM PDT