My picture of the silver is of fairly good quality. Its the bottom photo. http://outofabluesky.com/index.php?option=com_jportfolio&cat=4&project=46&Itemid=58
You can see that the silverish area is fairly erratic, not clustered together in a single patch. I'm more inclined to believe a chemical reaction on the ground. Has anyone found a stone with silverish on BOTH sides? I do want to note that the stone was found silver side down. -mt -------- Original Message -------- > From: Robert Woolard <[email protected]> > Sent: Wednesday, March 11, 2009 2:05 PM > To: [email protected] > Subject: [meteorite-list] West- Blue-Silvery Markings- Thanks and Thoughts > > Hello List, and Rubin, > > Third, there seems to be a wide range of theories at this point. It > obviously MUST be emphasized that my photo has been the only source for most > to base their opinions on, and a not-so-great photo at that, as it is too > "washed out" ( the stone is much darker, much more black in real life, with > the markings more pronounced and "shiny".) > > I have the permission from the respected meteorite researcher who performed > the initial classification for this meteorite fall, Alan Rubin, to pass along > a VERY PRELIMINARY supposition to the nature of these markings that he > emailed to me. As stated above, he wants to emphasize that he too has only > seen the photo, not the actual stone with the streaks in person. Here is what > his initial thoughts are: > > "When one looks at a fusion crust of an ordinary chondrite in the > microscope, one notices that there are numerous tiny magnetite grains there, > formed by oxidation during atmospheric passage. It looks to me as if these > silvery streaks are just places where the fusion crust has flaked off > revealing the magnetite-rich layer underneath." > > ______________________________________________ http://www.meteoritecentral.com Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list
