[meteorite-list] Gold and Iridium content of meteorites(especiallyirons)
From: Greg Catterton <star_wars_collector_at_meteoritecentral.com>
Date: Mon, 3 Oct 2011 23:05:29 -0700 (PDT) Message-ID: <1317708329.49633.YahooMailNeo_at_web46414.mail.sp1.yahoo.com> I have not seen visible gold in meteorites but I have seen them with copper in them that is visible and more recently, something more exciting. More to come on this soon. Hope everyone is doing good! ? Greg Catterton www.wanderingstarmeteorites.com On Ebay: http://stores.shop.ebay.com/wanderingstarmeteorites On Facebook: http://www.facebook.com/WanderingStarMeteorites ________________________________ From: Michael Gilmer <meteoritemike at gmail.com> To: Sterling K. Webb <sterling_k_webb at sbcglobal.net> Cc: meteorite-list at meteoritecentral.com Sent: Monday, October 3, 2011 9:45 PM Subject: Re: [meteorite-list] Gold and Iridium content of meteorites(especiallyirons) Hi Gang, I was just curious about exactly how much gold is bound up inside a meteorite with a higher than average content, like the one in this example. Personally, I share the same sentiment as most of you - it would be heresy to destroy a meteorite to extract something that is available here on Earth, even if it wasn't cost-prohibitive. At 41 years old, I have made it this far in life with terrible math skills, so this old dog isn't going to take any refresher courses.? I was hoping one of the more skilled (and intelligent) members would act as a human calculator and cipher this question for me.? :) So in this particular case, the 32kg iron meteorite contains ~1.5 troy ounces of gold, with a current market value of ~$2550. What sparked my curiosity was the apparently high gold content that was measured in milligrams and not the usual micrograms one expects to see. One last question, perhaps rhetorical in a sense, has anyone ever seen gold in a meteorite?? I mean, has there ever been a visible "bleb" or gold inclusion in a meteorite?? Or is all of the gold bound up on a molecular level and invisible to the naked eye and 10x loupe? I guess there won't be a gold rush to the asteroid belt.... Best regards, MikeG -- --------------------------------------------------------------------------------- Galactic Stone & Ironworks - Meteorites & Amber (Michael Gilmer) Website - http://www.galactic-stone.com Facebook - http://tinyurl.com/42h79my 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 10/3/11, Sterling K. Webb <sterling_k_webb at sbcglobal.net> wrote: > 1.49 mg per gram is one part in 671. > 1/671 of 32 kg is 47.7 grams of gold. > There are 31 grams per troy ounce; gold > is priced in troy ounces; there are 1.537 > troy ounces oif gold in that 32 kg, or > $2551.94 at today's (10/03/11) price. > > Cost you more than that to extract it... > > > Sterling K. Webb > -------------------------------------------------------------------------- > ----- Original Message ----- > From: "Stuart McDaniel" <actionshooting at carolina.rr.com> > To: "Michael Gilmer" <meteoritemike at gmail.com>; > <meteorite-list at meteoritecentral.com> > Sent: Monday, October 03, 2011 7:57 PM > Subject: Re: [meteorite-list] Gold and Iridium content of > meteorites(especiallyirons) > > >> Oops, I was wrong.....It would be >> >> 32,000gr / 1.49mg = 21475 mg >> >> 21,475/1000 = 21.475 gr >> >> Right, anyone?? >> >> >> >> >> Stuart McDaniel >> Lawndale, NC >> Secr., >> Cleve. Co. Astronomical Society >> IMCA #9052 >> Member - KCA, KBCA, CDUSA >> -----Original Message----- >> From: Michael Gilmer >> Sent: Monday, October 03, 2011 8:33 PM >> To: meteorite-list at meteoritecentral.com >> Subject: [meteorite-list] Gold and Iridium content of meteorites >> (especiallyirons) >> >> Hi List, >> >> In perusing through the latest additions to the Met Bulletin today, I >> was reading the compositional data for NWA 6932 (iron, ungrouped).? I >> noticed that the gold (Au) content was listed at 1.49mg/g.? Is this >> sort of data as straight-forward as it appears, or is there more to it >> that this layman is missing?? In other words, how much gold is in this >> meteorite?? The TKW of this meteorite is 32kg.? So, with 1000g in a >> kilo, and 1000mg in a gram, how much gold is in this celestial hunk of >> iron?? (my math is horrible) >> >> Second question, what is highest known gold content in a meteorite and >> what meteorite is it? >> >> Third question, some meteorites also have high iridium content.? What >> is the highest known iridium content in a meteorite? >> >> I am not suggesting in any way that meteorites should be refined or >> melted down to extract their precious metals content, but given the >> high value of metals such as gold and iridium, has any profiteer tried >> such an endeavour?? Or would the process be too complex and expensive? >> >> Best regards, >> >> MikeG >> >> --------------------------------------------------------------------------------- >> Galactic Stone & Ironworks - Meteorites & Amber (Michael Gilmer) >> >> Website - http://www.galactic-stone.com >> Facebook - http://tinyurl.com/42h79my >> 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 >> --------------------------------------------------------------------------------- >> ______________________________________________ >> 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 > > ______________________________________________ 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-listReceived on Tue 04 Oct 2011 02:05:29 AM PDT |
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