[meteorite-list] Adam's NWA 2989 Acapulcoite

From: John Birdsell <johnbirdsell_at_meteoritecentral.com>
Date: Tue Feb 14 19:50:51 2006
Message-ID: <20060215005049.29144.qmail_at_web51510.mail.yahoo.com>

Hi Adam...We were just curious, because in your ebay
ad you stated that you didn't have any accurate
figures on the TKW of pairings, and yet, the TKW of
~7.5kg has been publicly available on the internet for
months now, and in the Meteorite Bulletin data base it
states the following:


"[Provisional text]

Northwest Africa 2656

Morocco or Algeria

Find: Purchased 2003

Achondrite (acapulcoite)

History: A 386 g broken stone with weathered fusion
crust (part of a larger ~7.5 kg mass found in 2003)
was purchased in Erfoud, Morocco in 2004 for N. Oakes.
Petrography (T. Bunch and J. Wittke, NAU; A. Irving,
UWS): The specimen is recrystallized into homogeneous
polygonal and subhedral grains with a grain size of <1
mm and a somewhat equal distribution of phases.
Composition: Olivine Fa8.0 FeO/MnO = 16-19 (N = 25);
Orthopyroxene Fs8.4Wo2.4, N = 17; Plagioclase
An18.3?21.0Or2.8?3.4; Chromite, (Cr/Cr+Al) = 0.85,
Mg/(Mg+Fe) = 0.41. Troilite, schreibersite and
kamacite are also present. Oxygen Isotopes (D.
Rumble, CIW): Replicate analyses by laser fluorination
gave d17O = 1.71, 1.69?, d18O = 5.05, 5.04?, D17O =
-0.953, -0.973?, respectively. Classification:
Achondrite (acapulcoite) with minor shock and moderate
weathering. Specimens: A 21 g specimen and one
polished thin section are on deposit at NAU. Oakes
holds the main mass."






--- Adam Hupe <raremeteorites_at_comcast.net> wrote:

> Hi John and List,
>
> As I stated in my auction, the nomenclature is
> provisional. I do not have an
> image of the whole stone but I do have a receipt
> stating the weight of 77
> grams. As I mentioned in my auction, this weight was
> attributed to NWA 2989
> only and not any other pairings. It was also
> mentioned to the List that I
> believed it to be paired to NWA 2656 which has an
> official weight of 386
> grams. If somebody claimed a false weight on NWA
> 2656 that is not my
> problem. I got a good deal on the complete stone so
> I released my material
> at a reasonable price. If somebody is complaining
> about paying $40.00/50.00
> a gram for this beauty when others are selling it at
> 10 times this amount
> then there truly is a problem regardless of how much
> weight is out there. I
> reported what I had correctly. I cannot keep track
> of other pairings and
> nobody else can either. You made this argument when
> we were talking about
> what constitutes a main mass. If others knew there
> was more weight and the
> other pieces came from a single large stone then
> they should have reported
> it.
>
> Kind Regards,
>
> ------------------------------------
> Adam Hupe
> The Hupe Collection
> Team LunarRock
> IMCA 2185
> raremeteorites_at_comcast.net
>
>
>
>
> ----- Original Message -----
> From: "John Birdsell" <johnbirdsell_at_yahoo.com>
> To: <meteorite-list_at_meteoritecentral.com>
> Sent: Tuesday, February 14, 2006 4:11 PM
> Subject: Re: [meteorite-list] Adam's NWA 2989
> Acapulcoite
>
>
> > Hi Adam...the classification write-up usually
> states
> > whether it is likely paired to other meteorites.
> What
> > did your write up state? If it is a complete
> > individual, and it is paired to NWA 2656 and NWA
> 2714
> > and others, then I would think the TKW for this
> > grouping must be over 7.5 kilos. Did the write up
> > describe it as a whole stone? Is it surrounded by
> > fusion crust like a whole stone? If so, could you
> > maybe post some pics for the list?
> >
> >
> > Thanks!
> >
> >
> > -John
> >
> > --- Adam Hupe <raremeteorites_at_comcast.net> wrote:
> >
> > > Hi List,
> > >
> > > I believe it is paired to others but mine came
> as an
> > > individual not broken
> > > from another piece as far as I can tell. Anyway
> you
> > > look at, this new
> > > Acapulcoite is one great looking meteorite,
> > > especially when polished to a
> > > mirror finish.
> > >
> > > Take Care,
> > >
> > > ------------------------------------
> > > Adam Hupe
> > > The Hupe Collection
> > > Team LunarRock
> > > IMCA 2185
> > > raremeteorites_at_comcast.net
> > >
> > >
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> > >
> >
>
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> > >
> >
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Received on Tue 14 Feb 2006 07:50:49 PM PST