[meteorite-list] Biggest Meteorites by Type
From: Martin Altmann <altmann_at_meteoritecentral.com>
Date: Wed, 9 Jun 2010 21:40:01 +0200 Message-ID: <005001cb080b$8dbc4720$6502a8c0_at_name86d88d87e2> Hi Melanie, the Tkw of the ordinary chondrites is by faaaaaaaaaaaaaaaaaaaaaaaaaar lower than those of the irons. >From the approx 700 tons in total the Bulletins lists, alone 90% are allotted on the only 20 largest iron meteorites. Unlike in Sahara/NWA the Oman finds are quite good documented, there we have in all the 10 years together approx. 6 tons. Remember they are stones. Hence probably, (if you would be allowed to do so), you could pack them all on a small pick-up truck. Also the weight of the roughly 7000 Antarctic finds (pairing rate among field numbers is 5) is not that impressive, as there even the smallest bogey of 1g and less can be better spotted than in a rocky desert and is collected. NWA is somewhat difficult to estimate. Because there is no scientific interest, as well as no demand of the private collectors in the usually weathered ordinary chondrites, so that they aren't classified and listed in the Bulletins. There you could play a little bit around, with the ratios of the rare types to ordinary types at the observed falls, at Antarctica, at Oman. And then you can watch the weights of the rare types among the NWAs to conclude, how many ordinary chondrites might have been found among the NWAs. With that method, I would estimate.. Nja well, what is the payload of a larger truck 20-30 tons, Maybe 2-3 trucks for whole Sahara during the last 20 years. The biiig dark figure you won't find with the stones or with the NWAs, but with the big mass irons. Because the tkws in the Bulletins stem from old publications. Example. Sikhote is given there with 23 tons, but it's estimated, that meanwhile up to 100 tons were harvested. Soo each weathered common UNWA-sample is rarer than any Sikhote-specimen! Same with Campo, Gibeon and so on. That's also the reason, why all here on the list have always to smile, when they read in the media, that the meteorite affair would be a multi-million or even a billion-$$-biz. And that's why most think, that it is a little bit hysterical to decree laws preventing meteorite hunting, cause look, in France and Italy each autumn ten times more of the rarest truffles types are found, that stuff, where you have to pay 6000-12000$/kg, than meteorites in the Sahara. So be aware, that the UNWA in your box of chocolate, that kg-stone you paid 30$ for, is in deed so rare, than the same amount, 1 kilogram, of diamonds of the best quality! Sounds strange, but is so. Melanie, you can excellently play around with that tool. The Bulletin Database, there you can sort also any search by weight! http://tin.er.usgs.gov/meteor/metbull.php Best! Martin PS. Mike at least the smaller of the Kalaharis you can see here: http://meteorites.wustl.edu/lunar/stones/kalahari008.htm If you check the number of publications give there, I'd say, Kalahari is well documented. -----Urspr?ngliche Nachricht----- Von: meteorite-list-bounces at meteoritecentral.com [mailto:meteorite-list-bounces at meteoritecentral.com] Im Auftrag von Melanie Matthews Gesendet: Mittwoch, 9. Juni 2010 20:34 An: Greg Stanley; mike; meteorite-list at meteoritecentral.com Betreff: Re: [meteorite-list] Biggest Meteorites by Type Hey listers. This made me think of something.. Is the TKW of ordinary chondrites that has been recovered so far, still less than that of irons? (someone could give an estimate?) With such massive amounts of iron meteorites that are known - I'm reconsidering my stance on the notion that irons are "rarer" than ordinary chondrites? ----------- Melanie IMCA: 2975 eBay: metmel2775 Known on SkyRock Cafe as SpaceCollector09 Unclassified meteorites are like a box of chocolates... you never know what you're gonna get! ----- Original Message ---- From: Greg Stanley <stanleygregr at hotmail.com> To: mike <meteoritemike at gmail.com>; meteorite-list at meteoritecentral.com Sent: Wed, June 9, 2010 10:51:31 AM Subject: Re: [meteorite-list] Biggest Meteorites by Type Is there any CV larger then the largest Allende? It has the most total weight by far, but I'm not sure about a single stone. NWA 2697 was a single stone weighing 9.42 kg. Greg S. ---------------------------------------- > Date: Wed, 9 Jun 2010 12:34:19 -0400 > From: meteoritemike at gmail.com > To: meteorite-list at meteoritecentral.com > Subject: [meteorite-list] Biggest Meteorites by Type > > Hi Listees! > > I am putting together a list of the world's largest meteorites by > type. At first, I am concentrating on the major types and then I'll > descend into the rabbit hole of sub-types later. > > Here is what I have so far - > > Largest Iron - Hoba > Largest chondrite - Jilin > Largest aubrite - Norton County > Largest Martian meteorite - Zagami > Largest Lunar meteorite - NWA 5000 / Kalahari 009 > Largest pallasite - Brenham > > If there are any errors here, please correct me. :) > > I'd love to hear some suggestions for the largest of other types - > misc. achondrites, HEDO's, carbonaceous types, etc. > > Best regards, > > MikeG > http://www.galactic-stone.com > > -- > ------------------------------------------------------------ > Mike Gilmer - Galactic Stone & Ironworks Meteorites > http://www.galactic-stone.com > http://www.facebook.com/galacticstone > ------------------------------------------------------------ > ______________________________________________ > 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 _________________________________________________________________ The New Busy think 9 to 5 is a cute idea. Combine multiple calendars with Hotmail. http://www.windowslive.com/campaign/thenewbusy?tile=multicalendar&ocid=PID28 326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_5 ______________________________________________ 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 ______________________________________________ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list at meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list Received on Wed 09 Jun 2010 03:40:01 PM PDT |
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