Re: [meteorite-list] List of known Rusters?
Greetings, Here is a thread that WD40 was talked about in the past. You can use this date to go back and view all the comments. Apparently there was a prior thread on the same subject even further back. --AL Mitterling Re: [meteorite-list] WD-40 Eric Twelker Thu, 02 Jun 2005 21:49:26 -0700 Hello List Possibly one of the sources of the idea that WD-40 contains water is my preservation page. The reason I wrote this was personal experience. When I was starting out in the business, I bought a gallon can of WD-40 at the hardware store. I poured it into a glass container to treat some meteorites. In the bottom, sitting in an immiscible layer was something that sure looked like water to me. I didn't analyzed the layer, but when I heard that WD-40 contained water, I was convinced. Regards, Eric Twelker http://www.meteoritemarket.com Hi Mark, Did they sum it up in 6 words?? I would like to know why it doesn't contain water. If they have tanks that sit empty for any length of time there is bound to be some moisture from that alone. While it may be true it contains very little moisture (so the customer relations can state it doesn't have water as they want you to use their product) it still may contain enough to do damage to something susceptible to oxidation (like meteorites). To say it has no moisture in it at all, well I have a hard time believing that from them. Sometimes you have to really define terms and break apart information to get to the truth of the matter. A few well chosen words on their part really bother me. --AL __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list Quoting Meteorites USA e...@meteoritesusa.com: The formula for WD40 is secret. however... ...WD-40 literally stands for Water Displacement, 40th attempt... http://www.wd40.com/faqs/ WD40 does not contain water... ;)Wouldn't it seem counter intuitive to add water to a product which displaces water? Wired Science article about the ingredients of WD40: http://www.wired.com/science/discoveries/magazine/17-05/st_whatsinside ...What does WD-40 contain? - While the ingredients in WD-40 are secret, we can tell you what WD-40 does NOT contain. WD-40 does not contain silicone, kerosene, *water*, wax, graphite, chlorofluorocarbons (CFCs), or any known cancer-causing agents... http://www.wd40.com/faqs/ Nantan has a bad rep for rusting, however, usually only the outer surface of the irons are rusted. Smaller irons rust deeper into the interior of the metal in relation to it's size. The level of oxidation depends on the size of the specimen and partly on where within any given specimen the slice is cut from. The treatment and prep work on a finished piece of etched Nantan also plays a large part in whether it rusts or not. Regards, Eric On 12/6/2010 10:11 AM, Gary Fujihara wrote: I wouldn't use WD40 on any mets, as it contains water and smells. Like Al mentioned, a good low viscosity gun oil like Remington Rem-Oil wipes work well without any aroma. As an added bonus the application wipes clean mets while lubricating them. Also, as Matt mentioned, there are problem and stable specimens from most any iron or pallasite meteorite. Another factor is how they were prepared. And its not just irons and pallasites, as I've had Ghubaras and Tsarevs that self destruct by themselves. gary On Dec 6, 2010, at 8:00 AM, al mitt wrote: Hi Ed and all, This has been discussed before and I believe the consensus was that WD40 can have moisture in it that will promote rust. It depends on the batch but there is varying degrees of water contained in this lubricant. It might not be so good for Nantans but more stable irons like Gibeon would probably be fine. A good grade gun oil like Birchwood brand, Barricade seems to do better in my experience but smells a bit. Bottom line here, Nantans are often unstable and may have been weathered to the point you'll never be very successful at drying them out. These are notorious rusters. I like very much your idea of a list of meteorites that are problems specimens. Perhaps we could develop a rating system (1 to 10), (stable, mostly stable, partly stable, unstable, extremely unstable) or something similar and a listing of specimens. Even the metal in ordinary chondrites can rust. An example is Ghubara, Omen. About half of the pallasites out there are problem specimens, and a number of irons are. Best! --AL Mitterling - Original Message - From: Ed Majdenepmaj...@shaw.ca To:meteorite-list@meteoritecentral.com Sent: Monday, December 06, 2010 12:28 PM Subject: [meteorite-list] List of known Rusters? Does anyone have a list of known Iron meteorite rusters? The sample of Nantan China I have split into several pieces. I have been using WD40 on the pieces to retard further problems but this does not work
Re: [meteorite-list] List of known Rusters?
Hi list, rustophobes - with pleasure I post here the link to our colleague Ben's Website (who isn't list member, but reader) http://www.aranemac.de/mets/rost.html In cooperation with collector-friends of the Meteorite-Mineralien-Gold-Forum.de Ben worked out a system of 5 gratuated rust levels in regard to iron meteorites. As the website is in German please allow me to translate the 5 (colored) levels: Rust Level - 1 Staying stabile for a very long time without adding desiccants or other assistive equipment RL - 2 Pretty indulgent, ruster are a decesive exception RL - 3 In the most cases without problems over a few years, but one can get a ruster as well occasionelly RL - 4 Problematic irons, difficult to keep stabile, rusters are in majority RL - 5 Extreme rusters, the process usually ends with complete decay; stabile pieces are extremely rare The rest should be self-explanatory. Best, Matthias - Original Message - From: almi...@localnet.com To: meteorite-list@meteoritecentral.com Sent: Tuesday, December 07, 2010 11:39 AM Subject: Re: [meteorite-list] List of known Rusters? Greetings, Here is a thread that WD40 was talked about in the past. You can use this date to go back and view all the comments. Apparently there was a prior thread on the same subject even further back. --AL Mitterling Re: [meteorite-list] WD-40 Eric Twelker Thu, 02 Jun 2005 21:49:26 -0700 Hello List Possibly one of the sources of the idea that WD-40 contains water is my preservation page. The reason I wrote this was personal experience. When I was starting out in the business, I bought a gallon can of WD-40 at the hardware store. I poured it into a glass container to treat some meteorites. In the bottom, sitting in an immiscible layer was something that sure looked like water to me. I didn't analyzed the layer, but when I heard that WD-40 contained water, I was convinced. Regards, Eric Twelker http://www.meteoritemarket.com Hi Mark, Did they sum it up in 6 words?? I would like to know why it doesn't contain water. If they have tanks that sit empty for any length of time there is bound to be some moisture from that alone. While it may be true it contains very little moisture (so the customer relations can state it doesn't have water as they want you to use their product) it still may contain enough to do damage to something susceptible to oxidation (like meteorites). To say it has no moisture in it at all, well I have a hard time believing that from them. Sometimes you have to really define terms and break apart information to get to the truth of the matter. A few well chosen words on their part really bother me. --AL __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list Quoting Meteorites USA e...@meteoritesusa.com: The formula for WD40 is secret. however... ...WD-40 literally stands for Water Displacement, 40th attempt... http://www.wd40.com/faqs/ WD40 does not contain water... ;)Wouldn't it seem counter intuitive to add water to a product which displaces water? Wired Science article about the ingredients of WD40: http://www.wired.com/science/discoveries/magazine/17-05/st_whatsinside ...What does WD-40 contain? - While the ingredients in WD-40 are secret, we can tell you what WD-40 does NOT contain. WD-40 does not contain silicone, kerosene, *water*, wax, graphite, chlorofluorocarbons (CFCs), or any known cancer-causing agents... http://www.wd40.com/faqs/ Nantan has a bad rep for rusting, however, usually only the outer surface of the irons are rusted. Smaller irons rust deeper into the interior of the metal in relation to it's size. The level of oxidation depends on the size of the specimen and partly on where within any given specimen the slice is cut from. The treatment and prep work on a finished piece of etched Nantan also plays a large part in whether it rusts or not. Regards, Eric On 12/6/2010 10:11 AM, Gary Fujihara wrote: I wouldn't use WD40 on any mets, as it contains water and smells. Like Al mentioned, a good low viscosity gun oil like Remington Rem-Oil wipes work well without any aroma. As an added bonus the application wipes clean mets while lubricating them. Also, as Matt mentioned, there are problem and stable specimens from most any iron or pallasite meteorite. Another factor is how they were prepared. And its not just irons and pallasites, as I've had Ghubaras and Tsarevs that self destruct by themselves. gary On Dec 6, 2010, at 8:00 AM, al mitt wrote: Hi Ed and all, This has been discussed before and I believe the consensus was that WD40 can have moisture in it that will promote rust. It depends on the batch but there is varying degrees of water contained in this lubricant. It might not be so good for Nantans but more stable irons like Gibeon would probably be fine. A good grade gun oil like Birchwood brand,
[meteorite-list] Rust prevention techniques (Was : List of known rusters)
Hi Anne list, Has anyone tried camphor blocks? I have used it for preventing rust on tools in the past but don't know if it would be a good idea to try it on meteorites. Best regards, Charley Butterfield Well, squids don't work. Hey! Let's try elephants ! Hannibal Message: 18 Date: Mon, 6 Dec 2010 23:07:29 EST From: impact...@aol.com Subject: Re: [meteorite-list] List of known Rusters? To: meteorite...@gmail.com, meteorite-list@meteoritecentral.com Message-ID: 4ce.efb0b88.3a2f0...@aol.com Content-Type: text/plain; charset=US-ASCII Hello Jason, and all, I certainly agree with you when it comes to Dronino and Nantan, I have heard them called temporary meteorites and that does fit quite well. However I have right here a slice of Brenham about a foot across, it came from an old collection and it was cut/polished by Al Lang some 20 years ago, there is no varnish, nothing on it, and not a speck of rust. I know Colorado is relatively dry, but it was in a much more humid area before coming here. Same thing with a large end-cut of Brahin, from that same old collection, again no varnish or other protection and again, no rust. I wonder if the initial care it received right from the discovery does not make a much bigger difference than we usually think. For instance I have had slices of Fukang, some rusted quickly, some never did. Same thing with Chinga, Montdieu, Admire. And they were all kept here under the same condition. The only thing ever used on them (and not all of them) is Bill Mason's spray. Any other ideas? Anne M. Black _http://www.impactika.com/_ (http://www.impactika.com/) _impact...@aol.com_ (mailto:impact...@aol.com) President, I.M.C.A. Inc. _http://www.imca.cc/_ (http://www.imca.cc/) In a message dated 12/6/2010 8:47:23 PM Mountain Standard Time, meteorite...@gmail.com writes: Hello All, I can't speak for its effectiveness, but Rig Universal Grease is still available: http://www.google.com/search?sourceid=chromeie=UTF-8q=rig+rust+removal#q=r ig+universal+greasehl=enprmd=ivssource=univtbs=shop:1tbo=uei=WaX9TMOYA ZCisAPZsay7BAsa=Xoi=product_result_groupct=titleresnum=1ved=0CCQQrQQwAA biw=1050bih=676fp=4488cb887e893d25 If this is what you're talking about, it doesn't look as though it's being discontinued any time soon. Also, stay away from Nantan, Dronino, Campo, and Muonionalusta...unless they've been professionally treated. Brahin is also cursed, as are Brenham and Admire. They can supposedly be treated to prevent rusting - not having owned any of these meteorites because of the horrors I've seen (well, we once had some Nantan, and now have several), I again will not comment on the effectiveness of these treatments; I've no idea if they work or not. All I know is that all of those meteorites are predisposed to self-destruction. Regards, Jason -- ___ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list End of Meteorite-list Digest, Vol 88, Issue 13 ** __ 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] AD-Liquidation of Old Stock-Auctions Ending-MUST SEE!
Dear List Members, I have 90 different meteorites running, all started at just 99 cents with no reserves. 54 auctions are due to end this afternoon. I loaded several OLD STOCK items that have not been seen on eBay for years or have never been offered at all. 36 of these are the VERY LAST I have in inventory including some small main masses. There are many very rare subtypes for collectors who prefer to collect by type. You will find several stunning examples if you look for them. Some are so interesting that only an image will due for describing them. This is the last time 36 of these items will ever be available so you may want to at least take a look at them. Link to all auctions: http://shop.ebay.com/raremeteorites!/m.html Thank you for looking and if you are bidding, good luck. Best Regards, Adam Hupe The Hupe Collection IMCA 2185 Team Lunar Rock __ 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] List of known Rusters?
Hello List. Regarding Dronino, Mike Miller has done some great work for me over the past few years, and he recently resurfaced a large 2Kgram slice for me and the work is remarkable. Now with beautiful rust-free inclusions and no sign of regression... although I do keep it wrapped in saran-wrap with a coating of Hoppe's 9 (recommended by Kevin in his book, and I agree it's good). Richard Montgomery - Original Message - From: impact...@aol.com To: meteorite...@gmail.com; meteorite-list@meteoritecentral.com Sent: Monday, December 06, 2010 8:07 PM Subject: Re: [meteorite-list] List of known Rusters? Hello Jason, and all, I certainly agree with you when it comes to Dronino and Nantan, I have heard them called temporary meteorites and that does fit quite well. However I have right here a slice of Brenham about a foot across, it came from an old collection and it was cut/polished by Al Lang some 20 years ago, there is no varnish, nothing on it, and not a speck of rust. I know Colorado is relatively dry, but it was in a much more humid area before coming here. Same thing with a large end-cut of Brahin, from that same old collection, again no varnish or other protection and again, no rust. I wonder if the initial care it received right from the discovery does not make a much bigger difference than we usually think. For instance I have had slices of Fukang, some rusted quickly, some never did. Same thing with Chinga, Montdieu, Admire. And they were all kept here under the same condition. The only thing ever used on them (and not all of them) is Bill Mason's spray. Any other ideas? Anne M. Black _http://www.impactika.com/_ (http://www.impactika.com/) _impact...@aol.com_ (mailto:impact...@aol.com) President, I.M.C.A. Inc. _http://www.imca.cc/_ (http://www.imca.cc/) In a message dated 12/6/2010 8:47:23 PM Mountain Standard Time, meteorite...@gmail.com writes: Hello All, I can't speak for its effectiveness, but Rig Universal Grease is still available: http://www.google.com/search?sourceid=chromeie=UTF-8q=rig+rust+removal#q=r ig+universal+greasehl=enprmd=ivssource=univtbs=shop:1tbo=uei=WaX9TMOYA ZCisAPZsay7BAsa=Xoi=product_result_groupct=titleresnum=1ved=0CCQQrQQwAA biw=1050bih=676fp=4488cb887e893d25 If this is what you're talking about, it doesn't look as though it's being discontinued any time soon. Also, stay away from Nantan, Dronino, Campo, and Muonionalusta...unless they've been professionally treated. Brahin is also cursed, as are Brenham and Admire. They can supposedly be treated to prevent rusting - not having owned any of these meteorites because of the horrors I've seen (well, we once had some Nantan, and now have several), I again will not comment on the effectiveness of these treatments; I've no idea if they work or not. All I know is that all of those meteorites are predisposed to self-destruction. Regards, Jason __ 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
Re: [meteorite-list] List of known Rusters?
One thing you will want to stay away from is lacquer. Some dealers in the past didn't know any better and used to coat meteorites with lacquer, especially rusters. This doesn't allow the meteorite to breath and traps moisture inside the piece, accelerating the oxidation process. A few also used lacquer as a shortcut instead of finishing a polishing job. It would give the illusion of a well-prepared piece but there is no substitute for a fine polish which reduces surface area that can trap moisture. It is also very important to wipe down prepared meteorites after handling them. I saw a dealer applying car wax to a polished surface one time and he swore by it. Rusters seem to do better in an environment that doesn't have huge temperature swings with free circulating air. The best bet is to avoid rusters all together unless you live in a dry climate. I tend to avoid meteorites that need any kind of maintenance. This is one of the reasons I gravitate towards achondrites. I found that Rusty Mason's meteorite treatments are the best. Hopefully, he will be in Tucson where the Meteorite Kits can be ordered. Best Regards, 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] List of known Rusters?
Hi everyone, I've had great luck with the Campos from Bob Cucchiara (meteorite madness on eBay). I hand them out all the time to students. The only preservation I use is a spray for guns called Barricade available at Gander Mt. outdoors stores. It works well. I also still have an intact Nantan individual I got long ago from list member Walter Branch. A rarity like that must be worth millions. As for some others: * Dronino - can be both good and bad. I've got some that are in a hurry to return to the Earth and a couple that are perfect. * Canyon Diablo individuals - slow flaking * Muonionalusta - I've yet to find a stable slice out there * Gibeon - I've got one impossible slice and a couple of very stable ones * Mont Dieu - good but needs to be sprayed regularly * Lueders - no problems * Saint Aubin - a ruster Then there are the chondrites that get tears in their eyes (bleed). Dhofar 10 comes to mind. Best wishes, Bob __ 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] Geminid Meteor Shower Defies Explanation (Asteroid 3200 Phaethon)
The Geminids are my favorite, he explains, because they defy explanation. Most meteor showers come from comets, which spew ample meteoroids for a night of 'shooting stars.' The Geminids are different. The parent is not a comet but a weird rocky object named 3200 Phaethon that sheds very little dusty debris - not nearly enough to explain the Geminids. To refine conventional wisdom, the Geminids shower (and its outbound corollary) of the many meteor showers we see each year, has a parent body that could produce a meteorite. We preach the non-association of meteorite falls during normal cometary showers, but we need to keep in mind this possible exception should one of our clan ever ever be interviewed by Art Bell. A meteorite fall during the Geminids is statistically more likely to be related to the shower and parent body, even though statistically obscure. than a meteorite recovered during a cometary parent body meteor shower. That is to say, if any meteor shower parent body could produce debris falling to us as a meteorite this is the shower whose parent body: 3200 Phaethon Elton __ 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] AD Mundrabilla sculpture 438g
Dear List, Today I would like to offer a fantastic sculptured Mundrabilla Meteorite. Most Mundrabillas offered today are under 100g and no one has a fantastic shape like this one. Even if you are not in the buy modus, you should take a look at this outstanding specimen. http://www.meteoritenhaus.de/img/Mundrabilla_002_1.jpg http://www.meteoritenhaus.de/img/Mundrabilla_002_2.jpg http://www.meteoritenhaus.de/img/Mundrabilla_002_3.jpg http://www.meteoritenhaus.de/img/Mundrabilla_002_4.jpg Thanks for looking Best regards Andi - Meteoritenhaus i...@meteoritenhaus.de Inhaber Andreas Gren Stapelfelder Str. 58 22143 Hamburg Germany phone 0049(0)40-67593737 Umsatzsteuer-Identifikations-Nummer: folgt Steuernummer:08/453/07598 __ 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] AD Mundrabilla sculpture 438g SOLD
The Meteorite is sold, thanks a lot. Dear List, Today I would like to offer a fantastic sculptured Mundrabilla Meteorite. Most Mundrabillas offered today are under 100g and no one has a fantastic shape like this one. Even if you are not in the buy modus, you should take a look at this outstanding specimen. http://www.meteoritenhaus.de/img/Mundrabilla_002_1.jpg http://www.meteoritenhaus.de/img/Mundrabilla_002_2.jpg http://www.meteoritenhaus.de/img/Mundrabilla_002_3.jpg http://www.meteoritenhaus.de/img/Mundrabilla_002_4.jpg Thanks for looking Best regards Andi - Meteoritenhaus i...@meteoritenhaus.de Inhaber Andreas Gren Stapelfelder Str. 58 22143 Hamburg Germany phone 0049(0)40-67593737 Umsatzsteuer-Identifikations-Nummer: folgt Steuernummer:08/453/07598 __ 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] List of known Rusters?
Hi Bob and List, Then there are the chondrites that get tears in their eyes (bleed). Dhofar 10 comes to mind. .. Oh well, yes! My Dhofar 10 endcut that I purchased in 2001 kept bleeding / oozing for years until it finally surrendered about two years ago. No more chloride tears left! It's been stable since then. Another chondrite that just loves to produce plenty of rusty stains is NWA 2894 (probably L3) even though I know it's been cut and prepared professionally! Cheers, Bernd __ 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] Campo del Cielo, Las Palmas, Aruacu. Same or different
All, I am sure this one has been already been answered; if so, please send me to good source (hopefully difinitive) that I might educate myself. There seems to be conflicting 'reads' on these two meteorites: Campo del Cielo, Argentina Las Palmas, Argentina Are they possibly from the same fall, or not. Jonathan Dongell ICMA 3922 __ 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] Campo del Cielo, Las Palmas, Aruacu. Same or different
Hi Jonathan, I've been told that Las Palmas is different than Campo. I don't know about the third iron you mentioned. But, Las Palmas has not been classified or approved yet, so nothing is official yet. The source that told me is on this list. Best regards, MikeG -- Mike Gilmer - Galactic Stone Ironworks Meteorites Website - http://www.galactic-stone.com Facebook - http://www.facebook.com/galacticstone News Feed - http://www.galactic-stone.com/rss/126516 Twitter - http://twitter.com/galacticstone Meteorite Top List - http://meteorite.gotop100.com EOM - http://www.encyclopedia-of-meteorites.com/collection.aspx?id=1564 --- On 12/7/10, Jonathan E. Dongell jdong...@cox.net wrote: All, I am sure this one has been already been answered; if so, please send me to good source (hopefully difinitive) that I might educate myself. There seems to be conflicting 'reads' on these two meteorites: Campo del Cielo, Argentina Las Palmas, Argentina Are they possibly from the same fall, or not. Jonathan Dongell ICMA 3922 __ 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
Re: [meteorite-list] List of known Rusters?
Ed, I will sometimes use WD40 on previously treated/preserved irons, as a twice-a-year cleaner/sealer as a rub-down with a clean towel. But, I always heat my specimens to ~ 400 F for ~ 20 minutes, prior to every application (let them cool first... ouch...). I have noticed two things when using WD40 on my specimens: 1. it appears to be, at best, only a temporary rust retardant. 2. it does not behave as a 100% water-repellant oil-based product does; in fact, it can (in my opinion) emulsify with water/moisture in the specimen, due to the aliphatic component and/or the wetting agent used in WD40. The later # 2, is why I always insist on heating specimens that receive WD40. You must remove any moisture from within your specimen, or you will risk continued degradation of your specimen BENEATH THE SURFACE over time (in my opinion). The only other reason I might use WD40 is a personal preference. It gives certain irons a slightly darker, almost black-iron oxide or 'fusion-crust' tone or coloration (instead of a shiny, or a gun metal blue, or etc...) with continued usage. However, this same look, is why some collectors DON'T like to use WD40. That said, I would never use WD40 on a severe ruster. There are much better products (many have already been named on this listing) for retarding rust. But, NEVER apply any of these products (in my opinion) to a specimen (especially a 'severe ruster') until you: 1. remove as much of the alkalis and/or salts as is possible from specimen 2. remove as much ferric oxide as is possible, or convert as much ferric oxide to ferrous oxide (via chemical or electrico-chemical treatment) as is possible 3. apply either a chemical or an electrico-chemical treatment process to stabilize other minerals/metals (when necessary). 4. remove as much (better yet, all) moisture as is possible from specimen. ONLY THEN should you apply your rust prevention product of choice. Remember, these specimens are rusting for a reason. Most severe rusters have come from severe (sometimes anaerobic) environments. You must remove all the above rust 'contributing causes' prior to sealing any of these types of specimen (my opinion). Skipping any of the above steps, and applying a rust preventative, will surely lock in these potential 'rust mechanisms' within your specimen, which in fact, will create a more corrosive condition, and hasten the demise of your specimens. One last note... I continue to waiver on this one... Whether it is nobler to preserve the original specimen's as is qualities, or is it nobler still, to preserve the specimen from deteriorating away, thus altering forever, the as is quality. Alas, there is the rub. Just my opinions... Best of Luck ;} Jonathan Dongell IMCA 3922 - Original Message - From: Ed Majden epmaj...@shaw.ca To: meteorite-list@meteoritecentral.com Sent: Monday, December 06, 2010 9:28 AM Subject: [meteorite-list] List of known Rusters? Does anyone have a list of known Iron meteorite rusters? The sample of Nantan China I have split into several pieces. I have been using WD40 on the pieces to retard further problems but this does not work all that well. Have to repeat this every few weeks! Ed Majden Courtenay B.C. Asteroid Majden 142368 (Thanks to Rob Matson) __ 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
