Hi Jay, Yes, I have seen external widmanstatten patterns on many irons - usually weathered ones.
Sometimes it is more obvious than others. It depends on the iron type and the condition of the specimen. See this Canyon Diablo. It was very oxidized, but was then treated with the Pat Mulvany process. The outer rind of oxidation was removed and now the internal widmanstatten pattern is visible on portions of the outer surface. http://www.galactic-stone.com/product/canyon-diablo-big-iron-meteorite-stable-nickel-silver-patina-144g Best regards, MikeG --------------------------------------------------------------------------- Galactic Stone & Ironworks - Meteorites & Amber Website - http://www.galactic-stone.com Facebook - http://www.facebook.com/galacticstone News Feed - http://www.galactic-stone.com/rss/126516 Twitter - http://twitter.com/galacticstone EOM - http://www.encyclopedia-of-meteorites.com/collection.aspx?id=1564 ---------------------------------------------------------------------------- On 5/10/11, Jay Snyder <[email protected]> wrote: > Hello list, > > I am curious if anyone has ever observed an iron meteorite with a > widmanstatten pattern on the outside or I guess what would be the > outside or a weathered iron meteorite? I have a very small SaW 005 > that shows the patten after cleaning with a mild vinegar solution, > under the microscope. I've tried to capture some pictures, but am > unable at this time through the scope. Very interesting indeed, and > if anyone has had experiences with this I would like to hear about > them or see them too. > -- > Jason Snyder > Amateur Meteor Hunter > [email protected] > [email protected] > ______________________________________________ > Visit the Archives at > http://www.meteoritecentral.com/mailing-list-archives.html > Meteorite-list mailing list > [email protected] > http://six.pairlist.net/mailman/listinfo/meteorite-list > -- ______________________________________________ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list
