Hello All, A dunite is a type of ultramafic rock composed of olivine. It is associated with conditions/an origin in the (upper) mantle of a differentiated body (not just Earth). They form at greater depths than one would find any significant amount of orthopyroxene, and are composed primarily of olivine (which is a denser mineral). "Olivine diogenites" are technically dunites from 4-Vesta; Chassigny is a Martian dunite.
http://en.wikipedia.org/wiki/Dunite Regards, Jason On Thu, Apr 7, 2011 at 12:33 AM, Greg Catterton <[email protected]> wrote: > Dunite is the "Earth version" of Tatahouine. > > Greg Catterton > www.wanderingstarmeteorites.com > IMCA member 4682 > On Ebay: http://stores.shop.ebay.com/wanderingstarmeteorites > On Facebook: http://www.facebook.com/WanderingStarMeteorites > > > --- On Thu, 4/7/11, tracy latimer <[email protected]> wrote: > >> From: tracy latimer <[email protected]> >> Subject: Re: [meteorite-list] List of meteorites from Vesta? >> To: >> Cc: [email protected] >> Date: Thursday, April 7, 2011, 3:31 AM >> >> I had thought that dunites were Martian, like Chassigny. >> Have dunites been identified from other sources? >> >> Best! >> Tracy Latimer >> >> ---------------------------------------- >> > Date: Wed, 6 Apr 2011 22:58:02 -0400 >> > From: [email protected] >> > To: [email protected] >> > CC: [email protected] >> > Subject: Re: [meteorite-list] List of meteorites from >> Vesta? >> > >> > Hi Regine, >> > >> > All HEDOD meteorites are assumed to be Vestan in >> origin - Howardite, >> > Eucrite, Diogenite, Olivine diogenite, and Dunite. :) >> > >> > Best regards, >> > >> > MikeG >> > >> > >> ---------------------------------------------------------------------- >> > Mike Gilmer - Galactic Stone & Ironworks >> Meteorites >> > >> > 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 4/6/11, Regine Petersen wrote: >> > > Hi all, >> > > >> > > Is there a list of assumed Vesta meteorites? >> > > >> > > Regine >> > > ______________________________________________ >> > > 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 >> > > >> > >> > >> > -- >> > >> ---------------------------------------------------------------------- >> > Mike Gilmer - Galactic Stone & Ironworks >> Meteorites >> > >> > 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 >> > >> ----------------------------------------------------------------------- >> > ______________________________________________ >> > 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 >> > > > > ______________________________________________ > 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
