[meteorite-list] cleaning Millbillillie ?
From: Matthias Bärmann <majbaermann_at_meteoritecentral.com>
Date: Sun, 2 Nov 2008 21:01:55 +0100 Message-ID: <D04DB84BDBC649F7AA85661EED212F30_at_thinkcentre> Hello Alex, I completely agree with you. To continue with Australia'a laterite-red: would anyone like to clean this Henbury iron on Dr. Svend Buhl's website? http://www.niger-meteorite-recon.de/img_inventar/Meteorit%20Henbury.jpg Can't imagine. In any case, I wouldn't. Its time on the surface of our planet is definitely part of a meteorite's destiny. My best, Matthias ----- Original Message ----- From: "Alexander Seidel" <gsac at gmx.net> To: "tett" <tett at rogers.com>; <meteorite-list at meteoritecentral.com>; <bobl at peaktopeak.com> Sent: Sunday, November 02, 2008 5:24 PM Subject: Re: [meteorite-list] cleaning Millbillillie ? >> I agree that there is a special characteristic that would be lost if the >> red staining were to be removed from a Millbillillie individual. >> However, >> it is also great to have meteorites pristine with no terrestrial >> alteration. >> The priciest Millbillillies are those that with dark black glassy crusts. > > No, a meteorite like Millbillillie should be looked at in a much more > subtle way! > > It fell in 1960, and was collected no earlier than 10 years later! Talking > about > Millbillillie is exciting in many respects, as it e. g. displays different > textures on > cut slices, but talking about exterior surface, I would always prefer a > piece with > natural (laterite) patina over a piece which was somehow "cleaned" (..if > this were > possible..) or has only got some more or less glossy black crust alone > rather than > the brownish-reddish surface stains that are so very *typical* for this > meteorite, > and are part of its "character", so to say...! > > You are right insofar as, when we are talking about may be fresh Eucrites > or fresh > Howardites, we are looking and longing for fresh glossy black crust in the > first place, > as will be the case with e. g. the early collected pieces of a historical > fall like Stannern, > or some rare other finds and falls, but things are a quite a bit different > with a fall like > Millbillillie, even if it occured as late as 1960, considered a "fresh" > fall.... > > Well, nothing but my two (Euro-)Cents, > Alex > Berlin/Germany > > > ______________________________________________ > http://www.meteoritecentral.com > Meteorite-list mailing list > Meteorite-list at meteoritecentral.com > http://six.pairlist.net/mailman/listinfo/meteorite-list Received on Sun 02 Nov 2008 03:01:55 PM PST |
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