Re: [meteorite-list] Rust Question about my stone meteorite. BKF is the best :)
Hi there, well although I still feel relatively healthy, I know my meteorites will outlive me. Historic meteorite collectors know it; the way a meteorite goes, how it is passed from people to people, through the collections, from generation to generation. Yes, we have now the decade, were meteorites are greatly available and already obscenely cheap, but it's a phase. And little money doesn't mean, that we can forget about the respect we should have for these stones. (Would anyone throw his Tieschitz, his Ensisheim, his Tabor in acid? So why an NWA...). Irons, irons are different chapter. If it has around a lot of oxide-snot, rust it is absolutely legitimate to remove it. As it is legitimate to cut, polish and etch irons. But they are pure metal, the core remains unaltered in such procedures. Stones however not. They are damageable. All chemical treatment has to be avoided with them. Removing caliche, removing mechanically rust ect. alcohol not a problem, but everything else is. Just choose the wrong putty, see old discussion with the wrong softener or oils, and within not so long time, your stone will be damaged and blackened cm-deep and a case for the trash-bin. Throw a brown slice of a weathered chondrite, W3 or worse, with some acid in a vacuum cleaner, tear it out, when it's light grey et voila. Throw it then into ebay, without saying a word, and you get a tenfold price. You see how fine the line is? From innocent home decoration aspects to that, what some would call: fraud. And what for? Why can't the stone keep its dignity? Or else, not grandiloquent: You alter the material, afterwards it hasn't the same properties anymore. It will be something different. That's what I meant in my first post. A clear consequence is: It looses its collector's value, the monetary virtu. What will happen with pieces, treated that way, when the owners once will get weary of them? They'll get into circulation. No good. No good at all. I don't agree with Martin. Yes, on each mineral show you can see a lot of pimped, forged, mounted, glued, artificially colored minerals. But stone meteorites? Here and there perhaps a box of UNWA, painted black or treated with oil to sham freshness and fresh fusion crust. But very rarely. Use fingers and nose, easy to detect. And other than minerals and fossils, meteorites aren't bulk goods. The primary and secondary sources of origin are relatively few people, and responsible people. And the rest of the suppliers chain resells specimens like they get them in without working on them (except mounting them in jewellery, watches and stuff). Who of them would do such things? See. So it's really better to let the stones in peace, love them like they are. There are enough really fresh ones around, no necessity for manipulation. It deteriorates the material. Totally different question of course, but very easy to answer: Only if a stone is threaten to decay, then of course provisions to conserve it have to be applied. But we're talking about stone meteorites, not irons. Almost all make zero troubles, and if you store them dry, the number of real bleeders you can count on the fingers of two hands. Best, Martin __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Rust Question about my stone meteorite. BKF is the best :)
> 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 m eteorites > 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 > > > > > -Ursprüngliche 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/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=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: >
Re: [meteorite-list] Rust Question about my stone meteorite. BKF is the best :)
Hi Tom, The NWA 2086 specimen I submitted is being "researched" now. Will this be ground-breaking research? Probably not. But an experienced and qualified eye determined that it has some anomalous properties after examining the specimen in hand. Instead of the usual thin-sectioning, it is going to undergo microprobe analysis to determine the composition of the anomalous features. Granted it is a slim chance that this will be something new and exciting, but if it is, then it's best that the specimen was not altered any more than absolutely necessary. I guess it depends on the nature of the end collection in question. I don't consider my collection to be the end destination for any of the specimens in my cabinet. At best, I am a temporary caretaker and they will outlive me by far. When I pass from this Earth, those specimens will continue to exist without me like they did for the first 4.5 billion years of their existence. I'm comforted in some way by knowing that during my brief privilege of caring for them, I do not introduce anything foreign into them. At best, I endeavour to minimize the damage that they endure for every hour they sit exposed on this alien world that is toxic to their very nature. Without waxing too much more philosophic, I plan on seeing that my specimens end up in an educational institution or museum after I pass. Fate may dictate that one or more of them may end up being scrutinized in some way in the future. Who knows when someone may notice something odd or anomalous that we missed, and a piece will end up undergoing microprobe analysis? That's just my two Bessey Specks though...actual worth may vary. (I stole Melanie's turn of phrase, my apologies!) MikeG On 9/13/10, starsinthed...@aol.com wrote: > 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, > photoph...@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 sto
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, photoph...@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 -Ursprüngliche 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
Re: [meteorite-list] Rust Question about my stone meteorite. BKF is the best :)
s 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 > > > > > -Ursprüngliche 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/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=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 th
Re: [meteorite-list] Rust Question about my stone meteorite. BKF is thebest :)
Hi folks. I think both sides of this debate have valid points. One might ask: Is the cure worse than the disease? While a 'little' rust doesn't bother me, if my 'patient' is being killed by rust I'll most certainly intervene. A pile of crumbling, rusted fragments is of no value to science either. Sometimes rust removal might be considered the lesser of two evils. Linton - Original Message - From: "Shawn Alan" To: Sent: Monday, September 13, 2010 10:48 AM Subject: [meteorite-list] Rust Question about my stone meteorite. BKF is thebest :) 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 -Ursprüngliche 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
[meteorite-list] Rust Question about my stone meteorite. BKF is the best :)
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 -Ursprüngliche 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/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=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 -
Re: [meteorite-list] Rust Question about my stone meteorite.
Re-post as I can never seem to get the subject right when posting from a "digest from the met-list) -- Original Message -- From: "Steve Schoner" To: meteorite-list@meteoritecentral.com Subject: Re: Meteorite-list Digest, Vol 85, Issue 27 Date: Mon, 13 Sep 2010 16:53:12 GMT Martin and all, I too am worried about this trend, using BFK to "preserve" meteorites, especially stones. Having moved out of meteorite hunting due to disability, over the last 8 years I have kept my interest alive by learning the thin section process, and how to make them economically. What I have noticed is that some stones that have been "treated" can be extremely difficult to bond to glass. Any type of oil, or oxygen depleting substance will cause this, not to mention that it also changes the isotopic nature of the meteorite that will show up in micro-probe analysis. A simple soak in pure alcohol will do no harm. Also for some stones and irons, I have used alcohol and sodium hydroxide. One meteoriticist was adverse to this as he said that it would change isotopic nature. But I countered that in that if one looks at the reason for the rusting in irons or stones is the presence of chlorine that is derived from long term exposure to weather and soil. Chloriine from chlorides in the soil attach to pure iron as Ferric Chloride (FeCl3) which is highly hydroscopic, causing a ongoing catalytic reaction where it makes the iron latch onto oxygen thus turning the iron into rust. That is why one finds iron relics on dry lakes that are completely reduced to rust, and also the reason for the so called "Lawrencite" decay of meteorites. A solution of 70% alcohol and sodium hydroxide (NaOH) turns that ferric chloride (Lawrencite) into salt (NaCl) because chlorine has a higher affinity to sodium than to iron. It then creates a brine solution leaving the rusted iron as ferrous hydroxide (Fe[OH[2). (Fe[OH]2) then turns into FeO2-3 upon drying which is plain rust.But before drying the meteorite must be soaked in distilled water which will remove any salt on the surface of in the cracks. Thus with chlorine removed, the ongoing rusting caused by catalytic hydroscopic and acidic FeCl3 stops, The only addition, if any, is a trace of salt caused by this process. And most weathered meteorites will have traces of terrestrial salt anyway. I doubted that sodium hydroxide and alcohol would remove other elements that are bound in meteorite minerals. (Thechemical reaction is more complicated than what I have explained in the above paragraph. But simply stated the result is common table salt and solid stable rust. The chlorine has been removed from the meteorite. And I have done this with stones, such as Lamont, Kansas a terrible ruster.) I think the meteoriticist saw my point with regards to this process, and that that additional salt could be excluded from a micro-probe analysis in the study of irons. Anyway, that said, using oils or oxalic acid containing oils on stones is another thing. First off, oils are extremely difficult to remove from stone meteorites most of which are porous. Not only will they affect the thin section process, but also make classification as Martin has noted difficult if not impossible. Steve Schoner http://www.petroslides.com IMCA #4470 Message: 8 Date: Mon, 13 Sep 2010 14:24:16 +0200 From: "Martin Altmann" Subject: Re: [meteorite-list] Rust Question about my stone meteorite. BKF is the best :) To: Message-ID: <001e01cb533e$957ebd20$c07c37...@de> Content-Type: text/plain; charset="iso-8859-1" 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 Get Free Email with Video Mail & Video Chat! http://www.netzero.net/freeemail?refcd=NZTAGOUT1FREM0210 __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Rust Question about my stone meteorite. BKF is the best :)
Hi List, Most museums and notable collections realize that proper preparation is the key to preservation. Slices should be polished on both sides to reduce surface area which can and will trap moisture. A properly applied polish is the most important step in preserving any cut meteorite that contains metal. Tap water containing chlorine should never be used in the cutting or polishing processes. They should be stored in an area that doesn't experience huge temperature swings. Specimens do better in very low humidity. A lacquer coating should never be applied. Some less knowledgeable dealers apply a lacquer coating as a shortcut. Although, it may make the specimen look more desirable, it will never provide a substitute for a professionally applied polish. As a mater of fact, it actually traps moisture inside the specimen, will yellow over the years and is just plain bad. I learned the hard way. I had a several thousand dollar Brenham Pallasite dissolve into a pile of crap in a few short years. The slice actually flexed when I remove it from the safe. The only thing holding it together was the lacquer coating which held long enough for me to throw the specimen into a trash can. I was so disgusted that I never purchased from that dealer again. Hope this helps, Adam __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Rust Question about my stone meteorite. BKF is the best :)
Hello listers, I wonder what the institutional curators do to preserve their meteorite specimens? Do they actually do anything, or do they just let the specimens in their care rust away? Many years ago, I saw bags of specimens in the lower basement of the National History Museum in London, England. Forgot to ask the preservation techniques used. I remember seeing in the main gallery a layout of the Tenham Australia fall. Of course it was behind glass, but I did see what appeared to be a few flecks spalling off some of the larger specimens. Be interesting to see if anything is done in the way of meteorite preservation without compromising the specimens scientific worth. We all know the Orgueil meteorite was artificially contaminated by the introduction of foreign material. Would the use of BKF be doing the same thing? Chris. Spratt Victoria, BC __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Rust Question about my stone meteorite. BKF isthe best :)
Hi Martin, I agree it doesn't sound like a good idea. Personally I wouldn't do this, at a pinch I would treat an Iron meteorite if it was the last hope of keeping it alive! However this type of thing has actually been done for many years, other methods are also used such as galvanic cleaning, and my favourite pet hate- people putting on 'Kurust' rust stopper that turns the fusion crust jet black, they are all age old treatments. The same things happen in the mineral world, many crystals are oiled, polished and treated to enhance colour. I suppose at least Bar Keepers Friend (or renamed: meteorite sellers enemy) only effects a thin outer layer of the rock, the washing and drying at 200 degrees for several hours is probably much more destructive. Mark -Original Message- From: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] On Behalf Of Martin Altmann Sent: 13 September 2010 13:24 To: meteorite-list@meteoritecentral.com Subject: Re: [meteorite-list] Rust Question about my stone meteorite. BKF isthe best :) 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 -Ursprüngliche Nachricht- Von: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] Im Auftrag von Shawn Alan Gesendet: Montag, 13. September 2010 07:59 An: meteorite-list@meteoritecentral.com Cc: jimsk...@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/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=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 t
Re: [meteorite-list] Rust Question about my stone meteorite. BKF is the best :)
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 -Ursprüngliche Nachricht- Von: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] Im Auftrag von Shawn Alan Gesendet: Montag, 13. September 2010 07:59 An: meteorite-list@meteoritecentral.com Cc: jimsk...@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/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=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
Re: [meteorite-list] Rust Question about my stone meteorite. BKF is the best :)
Regardless of the smell, I think this might just work well on unwa
material. I'd still be hesitant to try it on rare types until I knew
more about it. I have a few meteorites I'd like to use this on. Maybe
when I get some time I'll try a few experiments. Thanks for the info Shawn.
Eric
On 9/12/2010 11:42 PM, Shawn Alan wrote:
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
Previous message: [meteorite-list] Rust Question about my stone meteorite. BKF
is the best :)
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
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
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 som
[meteorite-list] Rust Question about my stone meteorite. BKF is the best :)
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 Previous message: [meteorite-list] Rust Question about my stone meteorite. BKF is the best :) Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] 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 > > 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/meteorit
Re: [meteorite-list] Rust Question about my stone meteorite. BKF is the best :)
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 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@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[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/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 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@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Rust Question about my stone meteorite.
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, photoph...@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@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Rust Question about my stone meteorite.
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=p4340 __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
