[meteorite-list] Adam's NWA 2989 Acapulcoite

John Birdsell johnbirdsell at yahoo.com
Tue Feb 14 19:50:49 EST 2006


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
An18.3Ð21.0Or2.8Ð3.4; 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, 1.69ä, d18O = 5.05, 5.04ä, D17O =
-0.953, -0.973ä, 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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> > > Meteorite-list at meteoritecentral.com
> > >
> >
>
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> > >
> >
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> >
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> 
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