Re: [meteorite-list] Zacatecas (1792) on ebay
...oh,a discussion about my iron at ebay. Hi Mike and Jason, Zacatecas (1792) is not the same as Zacatecas (1969). All the photos were shown is Zacatecas (1969). That is a strong recrystallized iron and easy to recognize. I think(and not only think) i am sure,that the photo in encyclopedia of meteorites is a mistake. Don, what do you think? My Zacatecas 1792 is real. I have it from a German dealer. And this dealer is certainly the same source, where her other collectors piece for the collection have received. Perhaps even someone a picture for all present here for comparison. Many greetings Mirko Mirko Graul Meteorite Quittenring.4 16321 Bernau GERMANY Phone: 0049-1724105015 E-Mail: m_gr...@yahoo.de WEB: www.meteorite-mirko.de Member of The Meteoritical Society (International Society for Meteoritics and Planetery Science) IMCA-Member: 2113 (International Meteorite Collectors Association) --- Michael Fowler mqfow...@mac.com schrieb am Mo, 18.5.2009: Von: Michael Fowler mqfow...@mac.com Betreff: Re: [meteorite-list] Zacatecas (1792) on ebay An: meteorite-list@meteoritecentral.com CC: Michael Fowler mqfow...@mac.com Datum: Montag, 18. Mai 2009, 7:36 Thanks Jason, Don Edwards has a photo in the encyclopedia of meteorites, but it is not very clear. I was trying to decide if it was the re-crystalized 1969 Zacatecas or the 1792 one. I'm inclinded to think it is the 1792 Zacatecas, but there is room for confusion. http://www.encyclopedia-of-meteorites.com/test/Zacatecas1792_don_edwards.jpg Mike Hello Mike, Indeed, that's not a piece of the more common Zacatecas (1969). See here; that iron is clearly recrystallized: http://www.nyrockman.com/museum/zacatecas-1462.htm While I haven't been able to find a picture of the etch of the Zacatecas (1792) iron, I was able to find this picture of the main mass: http://commons.wikimedia.org/wiki/File:Zacatecas_(1792)_meteorite.jpg There is more than one Zacatecas! Regards, Jason On Sun, May 17, 2009 at 9:52 PM, Michael Fowler mqfowler at mac.com wrote: I collect ungrouped irons, and am looking for a slice of Zacatecas (1792) an ungrouped iron. The specimen on ebay: http://cgi.ebay.com/Meteorite-ZACATECAS-1792-perfect-etched-slice-12-3g_W0QQitemZ27038922QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item3ef474f44c_trksid=p3286.c0.m14_trkparms=66%3A2%7C65%3A3%7C39%3A1%7C240%3A1318%7C301%3A1%7C293%3A5%7C294%3A50#ebayphotohosting does not in my opinion look like the photo in Buchwald, or match his description: Zacatecas is remarkable in that it belongs to the rather few polycrystalline iron meteorites. The grain size ranges from 1 to 5 cm, a variation which is partly due to the random sectioning through many almost equiaxial grains. ... The grain boundaries are also conspicuous because of the copious development of very irregular 1-3 mm wide zones of swathing kamacite. This kamacite was nucleated by the troilite and schreibersite precipitates, and by the boundary itself, and grew significantly before the bulk of the grains transformed during the primary cooling period. .. Zacatecas may have shown a kamacite bandwith ot one time of .6 -1.0 mm, but since all taenite eventually disappeared and significant grain growth in the kamacite took place, no well defined Widmanstatten pattern is present now. In this respect, Zacatecas resembles New Baltimore, Santa Rosa and Chihuahua City. So in short, no well defined Widmanstatten pattern, unlike the photo in the ebay ad. Would anyone like to comment? Thanks, Mike Fowler Chicago ebay--starsandrocks__ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Zacatecas (1792) on ebay
Hello Mirko, Without ever having seen a piece of Zacatecas 1792, I would side with you; the piece of Zacatecas listed on the website does look exactly like the 1969 mass. That said, the picture that I posted of the whole mass: http://commons.wikimedia.org/wiki/File:Zacatecas_(1792)_meteorite.jpg Is NOT of the 1969 mass. That is the 1792 mass. But as I said, I couldn't find a picture of an etched slice of the 1792 mass other than the ones you posted on ebay. Regards, Jason On Mon, May 18, 2009 at 12:03 AM, Mirko Graul m_gr...@yahoo.de wrote: ...oh,a discussion about my iron at ebay. Hi Mike and Jason, Zacatecas (1792) is not the same as Zacatecas (1969). All the photos were shown is Zacatecas (1969). That is a strong recrystallized iron and easy to recognize. I think(and not only think) i am sure,that the photo in encyclopedia of meteorites is a mistake. Don, what do you think? My Zacatecas 1792 is real. I have it from a German dealer. And this dealer is certainly the same source, where her other collectors piece for the collection have received. Perhaps even someone a picture for all present here for comparison. Many greetings Mirko Mirko Graul Meteorite Quittenring.4 16321 Bernau GERMANY Phone: 0049-1724105015 E-Mail: m_gr...@yahoo.de WEB: www.meteorite-mirko.de Member of The Meteoritical Society (International Society for Meteoritics and Planetery Science) IMCA-Member: 2113 (International Meteorite Collectors Association) --- Michael Fowler mqfow...@mac.com schrieb am Mo, 18.5.2009: Von: Michael Fowler mqfow...@mac.com Betreff: Re: [meteorite-list] Zacatecas (1792) on ebay An: meteorite-list@meteoritecentral.com CC: Michael Fowler mqfow...@mac.com Datum: Montag, 18. Mai 2009, 7:36 Thanks Jason, Don Edwards has a photo in the encyclopedia of meteorites, but it is not very clear. I was trying to decide if it was the re-crystalized 1969 Zacatecas or the 1792 one. I'm inclinded to think it is the 1792 Zacatecas, but there is room for confusion. http://www.encyclopedia-of-meteorites.com/test/Zacatecas1792_don_edwards.jpg Mike Hello Mike, Indeed, that's not a piece of the more common Zacatecas (1969). See here; that iron is clearly recrystallized: http://www.nyrockman.com/museum/zacatecas-1462.htm While I haven't been able to find a picture of the etch of the Zacatecas (1792) iron, I was able to find this picture of the main mass: http://commons.wikimedia.org/wiki/File:Zacatecas_(1792)_meteorite.jpg There is more than one Zacatecas! Regards, Jason On Sun, May 17, 2009 at 9:52 PM, Michael Fowler mqfowler at mac.com wrote: I collect ungrouped irons, and am looking for a slice of Zacatecas (1792) an ungrouped iron. The specimen on ebay: http://cgi.ebay.com/Meteorite-ZACATECAS-1792-perfect-etched-slice-12-3g_W0QQitemZ27038922QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item3ef474f44c_trksid=p3286.c0.m14_trkparms=66%3A2%7C65%3A3%7C39%3A1%7C240%3A1318%7C301%3A1%7C293%3A5%7C294%3A50#ebayphotohosting does not in my opinion look like the photo in Buchwald, or match his description: Zacatecas is remarkable in that it belongs to the rather few polycrystalline iron meteorites. The grain size ranges from 1 to 5 cm, a variation which is partly due to the random sectioning through many almost equiaxial grains. ... The grain boundaries are also conspicuous because of the copious development of very irregular 1-3 mm wide zones of swathing kamacite. This kamacite was nucleated by the troilite and schreibersite precipitates, and by the boundary itself, and grew significantly before the bulk of the grains transformed during the primary cooling period. .. Zacatecas may have shown a kamacite bandwith ot one time of .6 -1.0 mm, but since all taenite eventually disappeared and significant grain growth in the kamacite took place, no well defined Widmanstatten pattern is present now. In this respect, Zacatecas resembles New Baltimore, Santa Rosa and Chihuahua City. So in short, no well defined Widmanstatten pattern, unlike the photo in the ebay ad. Would anyone like to comment? Thanks, Mike Fowler Chicago ebay--starsandrocks__ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Zacatecas (1792) on ebay
I collect ungrouped irons, and am looking for a slice of Zacatecas (1792) an ungrouped iron. The specimen on ebay: http://cgi.ebay.com/Meteorite-ZACATECAS-1792-perfect-etched-slice-12-3g_W0QQitemZ27038922QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item3ef474f44c_trksid=p3286.c0.m14_trkparms=66%3A2%7C65%3A3%7C39%3A1%7C240%3A1318%7C301%3A1%7C293%3A5%7C294%3A50#ebayphotohosting does not in my opinion look like the photo in Buchwald, or match his description: Zacatecas is remarkable in that it belongs to the rather few polycrystalline iron meteorites. The grain size ranges from 1 to 5 cm, a variation which is partly due to the random sectioning through many almost equiaxial grains. ... The grain boundaries are also conspicuous because of the copious development of very irregular 1-3 mm wide zones of swathing kamacite. This kamacite was nucleated by the troilite and schreibersite precipitates, and by the boundary itself, and grew significantly before the bulk of the grains transformed during the primary cooling period. .. Zacatecas may have shown a kamacite bandwith ot one time of .6 -1.0 mm, but since all taenite eventually disappeared and significant grain growth in the kamacite took place, no well defined Widmanstatten pattern is present now. In this respect, Zacatecas resembles New Baltimore, Santa Rosa and Chihuahua City. So in short, no well defined Widmanstatten pattern, unlike the photo in the ebay ad. Would anyone like to comment? Thanks, Mike Fowler Chicago ebay--starsandrocks __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Zacatecas (1792) on ebay
Hello Mike, Indeed, that's not a piece of the more common Zacatecas (1969). See here; that iron is clearly recrystallized: http://www.nyrockman.com/museum/zacatecas-1462.htm While I haven't been able to find a picture of the etch of the Zacatecas (1792) iron, I was able to find this picture of the main mass: http://commons.wikimedia.org/wiki/File:Zacatecas_(1792)_meteorite.jpg There is more than one Zacatecas! Regards, Jason On Sun, May 17, 2009 at 9:52 PM, Michael Fowler mqfow...@mac.com wrote: I collect ungrouped irons, and am looking for a slice of Zacatecas (1792) an ungrouped iron. The specimen on ebay: http://cgi.ebay.com/Meteorite-ZACATECAS-1792-perfect-etched-slice-12-3g_W0QQitemZ27038922QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item3ef474f44c_trksid=p3286.c0.m14_trkparms=66%3A2%7C65%3A3%7C39%3A1%7C240%3A1318%7C301%3A1%7C293%3A5%7C294%3A50#ebayphotohosting does not in my opinion look like the photo in Buchwald, or match his description: Zacatecas is remarkable in that it belongs to the rather few polycrystalline iron meteorites. The grain size ranges from 1 to 5 cm, a variation which is partly due to the random sectioning through many almost equiaxial grains. ... The grain boundaries are also conspicuous because of the copious development of very irregular 1-3 mm wide zones of swathing kamacite. This kamacite was nucleated by the troilite and schreibersite precipitates, and by the boundary itself, and grew significantly before the bulk of the grains transformed during the primary cooling period. .. Zacatecas may have shown a kamacite bandwith ot one time of .6 -1.0 mm, but since all taenite eventually disappeared and significant grain growth in the kamacite took place, no well defined Widmanstatten pattern is present now. In this respect, Zacatecas resembles New Baltimore, Santa Rosa and Chihuahua City. So in short, no well defined Widmanstatten pattern, unlike the photo in the ebay ad. Would anyone like to comment? Thanks, Mike Fowler Chicago ebay--starsandrocks __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Zacatecas (1792) on ebay
Thanks Jason, Don Edwards has a photo in the encyclopedia of meteorites, but it is not very clear. I was trying to decide if it was the re-crystalized 1969 Zacatecas or the 1792 one. I'm inclinded to think it is the 1792 Zacatecas, but there is room for confusion. http://www.encyclopedia-of-meteorites.com/test/Zacatecas1792_don_edwards.jpg Mike Hello Mike, Indeed, that's not a piece of the more common Zacatecas (1969). See here; that iron is clearly recrystallized: http://www.nyrockman.com/museum/zacatecas-1462.htm While I haven't been able to find a picture of the etch of the Zacatecas (1792) iron, I was able to find this picture of the main mass: http://commons.wikimedia.org/wiki/File:Zacatecas_(1792)_meteorite.jpg There is more than one Zacatecas! Regards, Jason On Sun, May 17, 2009 at 9:52 PM, Michael Fowler mqfowler at mac.com wrote: I collect ungrouped irons, and am looking for a slice of Zacatecas (1792) an ungrouped iron. The specimen on ebay: http://cgi.ebay.com/Meteorite-ZACATECAS-1792-perfect-etched-slice-12-3g_W0QQitemZ27038922QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item3ef474f44c_trksid=p3286.c0.m14_trkparms=66%3A2%7C65%3A3%7C39%3A1%7C240%3A1318%7C301%3A1%7C293%3A5%7C294%3A50#ebayphotohosting does not in my opinion look like the photo in Buchwald, or match his description: Zacatecas is remarkable in that it belongs to the rather few polycrystalline iron meteorites. The grain size ranges from 1 to 5 cm, a variation which is partly due to the random sectioning through many almost equiaxial grains. ... The grain boundaries are also conspicuous because of the copious development of very irregular 1-3 mm wide zones of swathing kamacite. This kamacite was nucleated by the troilite and schreibersite precipitates, and by the boundary itself, and grew significantly before the bulk of the grains transformed during the primary cooling period. .. Zacatecas may have shown a kamacite bandwith ot one time of .6 -1.0 mm, but since all taenite eventually disappeared and significant grain growth in the kamacite took place, no well defined Widmanstatten pattern is present now. In this respect, Zacatecas resembles New Baltimore, Santa Rosa and Chihuahua City. So in short, no well defined Widmanstatten pattern, unlike the photo in the ebay ad. Would anyone like to comment? Thanks, Mike Fowler Chicago ebay--starsandrocks __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Zacatecas (1792) on ebay
Hello Mike, http://www.encyclopedia-of-meteorites.com/test/Zacatecas1792_don_edwards.jpg Clearly recrystallized, the piece on Don's site looks like a slice of the 1969 individual. The trouble is that if that really is a piece of the 1792 fragment, then the one on ebay isn't a piece of either iron. H I'd say that the picture you found is a slice of the 1969 individual, mislabeled. Regards, Jason On Sun, May 17, 2009 at 10:36 PM, Michael Fowler mqfow...@mac.com wrote: Thanks Jason, Don Edwards has a photo in the encyclopedia of meteorites, but it is not very clear. I was trying to decide if it was the re-crystalized 1969 Zacatecas or the 1792 one. I'm inclinded to think it is the 1792 Zacatecas, but there is room for confusion. http://www.encyclopedia-of-meteorites.com/test/Zacatecas1792_don_edwards.jpg Mike Hello Mike, Indeed, that's not a piece of the more common Zacatecas (1969). See here; that iron is clearly recrystallized: http://www.nyrockman.com/museum/zacatecas-1462.htm While I haven't been able to find a picture of the etch of the Zacatecas (1792) iron, I was able to find this picture of the main mass: http://commons.wikimedia.org/wiki/File:Zacatecas_(1792)_meteorite.jpg There is more than one Zacatecas! Regards, Jason On Sun, May 17, 2009 at 9:52 PM, Michael Fowler mqfowler at mac.com wrote: I collect ungrouped irons, and am looking for a slice of Zacatecas (1792) an ungrouped iron. The specimen on ebay: http://cgi.ebay.com/Meteorite-ZACATECAS-1792-perfect-etched-slice-12-3g_W0QQitemZ27038922QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item3ef474f44c_trksid=p3286.c0.m14_trkparms=66%3A2%7C65%3A3%7C39%3A1%7C240%3A1318%7C301%3A1%7C293%3A5%7C294%3A50#ebayphotohosting does not in my opinion look like the photo in Buchwald, or match his description: Zacatecas is remarkable in that it belongs to the rather few polycrystalline iron meteorites. The grain size ranges from 1 to 5 cm, a variation which is partly due to the random sectioning through many almost equiaxial grains. ... The grain boundaries are also conspicuous because of the copious development of very irregular 1-3 mm wide zones of swathing kamacite. This kamacite was nucleated by the troilite and schreibersite precipitates, and by the boundary itself, and grew significantly before the bulk of the grains transformed during the primary cooling period. .. Zacatecas may have shown a kamacite bandwith ot one time of .6 -1.0 mm, but since all taenite eventually disappeared and significant grain growth in the kamacite took place, no well defined Widmanstatten pattern is present now. In this respect, Zacatecas resembles New Baltimore, Santa Rosa and Chihuahua City. So in short, no well defined Widmanstatten pattern, unlike the photo in the ebay ad. Would anyone like to comment? Thanks, Mike Fowler Chicago ebay--starsandrocks__ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
