And ... a glass of water is interesting when put next to a powerful magnet, the surface of the water bends as the magnet is brought near it- It's quite spooky, and even works with a hard drive magnet.
Trouble with looking for magnetic moment alignment in planetary samples is by the time a slice has been knocked about on a cutting wheel etc, it has lost much of it's information. I have found that iron meteorites magnetize very easily even if you tap them sharply a few times, (just by the earth's magnetic field). Even sending something through the post, exposes it to all sorts of fields and mechanical action. (Plus nearly everyone slaps a rare earth magnet on a rock when they find it, it's one of the 'is this a meteorite?' tests). My guess is to get proper magnetic field information you would need a freshly fallen piece that has been carefully handled and prepared in such a way as to minimise the disturbance to 'the force'.. Mark -----Original Message----- From: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] On Behalf Of Adam Hupe Sent: 17 August 2010 03:45 To: Adam Subject: Re: [meteorite-list] Newcomers and the Meteorite world Hi Mike in CO, Magnetic susceptibility is a difficult question to answer. A CEREGE (CNRS), Geophysics and Planetologyscientist from France flew out here to Laughlin, NV, U.S.A. to conduct magnetic susceptibility studies on several of our planetary pieces including NWA 5000. He spent hours plotting hundred of points on NWA 5000 to create a susceptibility map. All I can tell you is that numbers his instruments measured were different for each and every point on the rock. I guess we will have to wait for the results and magnetic map to be published. If you are asking how attracted it is to a magnet, then my answer is as follows: NWA 5000 contains more metal than any rock from the Moon discovered, yet a magnet will barley stick to it unless you are in direct contact with a piece of elemental metal. I have magnets so powerful that the small amount of iron in breakfast cereal is enough to make the pieces of cereal stick to them, same for dry dog food. For the most part, planetary meteorites are not all that attracted to standard magnets. I recommend liberating a piece of a suspected planetary meteorite and then testing it with a magnet therefore preserving the rest of the mass for future study. A magnet will orient some of the dipoles into a new North South direction making some future studies impossible. Best Regards, Adam ----- Original Message ---- From: Michael Murray <mmur...@montrose.net> To: Adam Hupe <raremeteori...@yahoo.com> Cc: Adam <meteorite-list@meteoritecentral.com> Sent: Mon, August 16, 2010 2:02:36 PM Subject: Re: [meteorite-list] Newcomers and the Meteorite world This is probably the 'dumb question of the year' but, is there any magnetic susceptibility detectable on NWA 5000 or, for that matter any of your planetary pieces? See, told you it was going to be a dumb question. Mike in CO On Aug 16, 2010, at 11:43 AM, Adam Hupe wrote: > Thank you, Greg, > > It is both a desert patina and fusion crust. The gray area is where the fusion > crust was etched very thin by the prevailing winds and sand over the 1,000 year > period it spent in Western Sahara. You can still observe contraction cracks in > the gray areas where the crust is so thin that you can see the matrix through > it. Most collectors do not realize that Lunar meteorites, for the most part, > have brown fusion crusts. A few Mare pieces have smooth black fusion crusts >and > a few Highlands have translucent green fusion crusts. This is one of many clues > that we have a prospective Lunaite in front of us. You will never see a >wrinkly > Eucrite-like black fusion crust on a lunar meteorite. > > Best Regards, > > Adam > > > > > ----- Original Message ---- > From: Thunder Stone <stanleygr...@hotmail.com> > To: Adam Hupe <raremeteori...@yahoo.com>; meteorite-list@meteoritecentral.com > Sent: Mon, August 16, 2010 10:27:33 AM > Subject: RE: [meteorite-list] Newcomers and the Meteorite world > > > Adam/Greg: > > Very impressive. > Is that a fusion crust on NWA 5000 or desert varnish? > > Greg S. > > ---------------------------------------- >> Date: Sun, 15 Aug 2010 15:31:50 -0700 >> From: raremeteori...@yahoo.com >> To: meteorite-list@meteoritecentral.com >> Subject: Re: [meteorite-list] Newcomers and the Meteorite world >> >> The question was presented. How many dealers have a personal collection? >> >> My brother Greg and I started out as collectors and continue to this day. I >> believe we have more planetary main masses than anybody in the world. >> >> Here is an image of part of the Hupe Planetary Collection. >> >> http://themeteoritesite.com/HupeCollectionMainMasses.jpg >> >> We have a few more planetary main masses that are not included in this image, >> either because they were out on loan or too small. >> >> Enjoy and 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 > ______________________________________________ > 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 CONFIDENTIALITY NOTICE: This email and any files transmitted with it are confidential. 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