[meteorite-list] AD: Unique and Uncommon new Martian - NWA 5990

From: Greg Stanley <stanleygregr_at_meteoritecentral.com>
Date: Thu, 10 Dec 2009 16:16:28 -0800
Message-ID: <SNT117-W34B2401224674A346A2F13D28C0_at_phx.gbl>

Stefan/Martin:


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Simply a magnificent specimen; congratulations on your find.



Greg S.

----------------------------------------
> From: news at chladnis-heirs.com
> To: Meteorite-list at meteoritecentral.com
> Date: Thu, 10 Dec 2009 22:36:13 +0100
> Subject: [meteorite-list] AD: Unique and Uncommon new Martian - NWA 5990
>
> Dear collectors,
>
> today it is highest time to introduce our new ? not only in our eyes ? quite
> sensational planetary recovery.
> NWA 5990. A new Martian, remarkably distinct from the so far known finds.
>
> Before cutting it was a relatively small stone of only 59 grams, coated with
> an unweathered black fusion crust with some indications of flight marks,
> which seemed to have spalled of on one corner by impacting the ground. The
> stone felt somewhat heavier than one would expect for a planetary one.
>
> Here you have a picture of the intact mass:
>
> http://www.chladnis-heirs.com/uncut-mainm-klein.jpg
>
>
> The first cut then revealed the outstanding nature of that small stone.
> The overall fresh appearance of the exterior was trumped by the pristinely
> looking cross section and you may comprehend our sudden elatedness, if you
> take a look at this picture of the unpolished cut surface:
>
> http://www.chladnis-heirs.com/6.995g-end-kl.jpg
>
>
> As you can see, that stone looks simply different from all other Martians we
> know.
> Well, with the numerous partially blackened olivines, one could tend to
> think into the direction of a lherzolithe, but it turned out, that the stone
> contains by far too much plagioclase to be lherzolithic. The grain size
> however fits to a diabase.
>
>
> That material is currently under analyses with a high priority at Dr.Irving,
> Dr.Herd et al. - and perhaps as early as in January an abstract will be
> already available.
> Therefore we beg for your understanding, that we can't forecast the exciting
> results, but have to leave the first publication to the researchers, avidly
> working on that surprising material.
> Maybe the one or other being already the proud owner of a slice will share
> his/her observations here in this thread with us instead.
>
> And here starts our dilemma - you may wonder, why we go public with this new
> Martian already without being able to name and explain the particularities
> and specifics of this new material - especially so shortly before a paper is
> scheduled; also it is planned to introduce the stone at the next Lunar &
> Planetary Science Conference in Houston in beginning March..
>
> Well the reason is simple - until then the material will have been
> completely gone and you would have to miss out that important new Martian.
>
> As the tkw was so low and this unique meteorite has such a scientific
> brisance, we had of course to address firstly to research institutes, like
> we had to do with NWA 5789 too. Afterwards we supplied the Martian
> enthusiasts from our address book (and we cordially recommend and invite the
> planetary specialists to contact us, if they want to be added there too).
>
> So in the end and at present there are only two specimens left!
>
>
> Half a fullslice with fusion crust. 2.338g
> Price is 1600$/g
>
> http://www.chladnis-heirs.com/2_338g.jpg
>
>
> And a crusted partial endcut. 1.908g
> at 1500$/g
>
> http://www.chladnis-heirs.com/1_908g_endcut.jpg
>
> http://www.chladnis-heirs.com/1_908g-end2.jpg
>
>
>
> Else there would be only these two pieces, but they are on hold for a
> museum, the negotiations aren't finished yet.
> So most probably they won't be available.
>
> A cap of the stone with a lot of crust and flight marks.
> (Largest intact piece, hence depending on definitions the "main mass"):
> http://www.chladnis-heirs.com/6.955g-end2-kl.jpg
>
> http://www.chladnis-heirs.com/6.995g-end-kl.jpg
>
>
> And a partslice.
> http://www.chladnis-heirs.com/2_055g.jpg
>
>
> If these specimens will have been gone, not a single grain of the stone will
> remain available.
>
>
> We hope you're as fascinated as we are from that new Christmas greeting from
> the Red Planet and wish you a peaceful time.
>
> Stefan Ralew & Martin Altmann
>
> Chladni's Heirs
> Munich - Berlin
> Fine Meteorites for Science & Collectors
> http://www.chladnis-heirs.com/
>
>
>
>
>
> ______________________________________________
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Received on Thu 10 Dec 2009 07:16:28 PM PST