I've recently studied up on Olivine Diogenites and Dunites and collated the
info from all the papers I could find. So further to Jason's info below, I
also found that a general rule of thumb is that Olivine Diogenites have an
olivine content of >40% while Dunites have an olivine content of >90%.
Cheers,
Jeff
----- Original Message -----
From: "Jason Utas" <[email protected]>
To: "Meteorite-list" <[email protected]>
Sent: Thursday, April 07, 2011 6:20 PM
Subject: Re: [meteorite-list] List of meteorites from Vesta?
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
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>
-----------------------------------------------------------------------
>
> 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
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> >
>
>
> --
>
----------------------------------------------------------------------
> 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
>
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