[meteorite-list] Re: Acapulcoite TKW Update

From: John Birdsell <johnbirdsell_at_meteoritecentral.com>
Date: Tue Feb 14 21:39:30 2006
Message-ID: <20060215023919.67555.qmail_at_web51510.mail.yahoo.com>

Hi Stan and thanks for your email. Ok, I think that
this Acapulcoite TKW thing really needs to get nailed
down before the next Met Bulletin comes out. Can
everyone that has a significant amount of this
material write us either on or off list so that we can
add up all of the pieces and get the correct TKW.
Stan, am I correct in assuming that between you and
Nelson, you had 7500 grams of NWA 2656? We had 1666
grams of NWA 2714, so that brings the TKW weight up to
at least 9166 grams, plus Adam's 77 grams = 9243
grams...Any more out there?


-John



--- "stan ." <laser_maniac_at_hotmail.com> wrote:

> for those that might be curious the mass of 2656 was
> broken into 'pieces' -
> as in 2 pieces. Nelson Oaks has one and I have the
> other, with a few slices
> being sold off here and there. If Adam's piece is
> paired then the bueaty of
> this stuff really cant be understated - it's
> gorgeous material. IF anyone
> wants a piece and 4 or 5 grams isnt enough then
> wirte Nelson, I belive his
> piece is up for grabs - or at least it was listed in
> Lang's auction at
> tucson...
>
>
>
> >From: John Birdsell <johnbirdsell_at_yahoo.com>
> >To: Meteorite-list_at_meteoritecentral.com
> >Subject: Re: [meteorite-list] Adam's NWA 2989
> Acapulcoite
> >Date: Tue, 14 Feb 2006 15:21:11 -0800 (PST)
> >
> >Hi Bernd...Yes, if it is paired to our new
> Acapulcoite
> >NWA 2714 and NWA 2656, then the provisional
> write-up
> >in MB90 states that the TKW is accounted for by a
> >single ~ 7.5 kilogram stone which was apparently
> >broken into pieces and sold.
> >
> >
> >Cheers
> >
> >
> >-John
> >
> >
> >
> >--- bernd.pauli_at_paulinet.de wrote:
> >
> > > Hello All !
> > >
> > > I've just purchased my 3.7-gram, extremely
> metal-
> > > and troilite-rich slice
> > > of NWA 2989 (Item #6605571076 - just in case you
> > > care to take a look ;-)
> > > that Adam is offering on EBay. Look at it and
> you'll
> > > know what I mean!
> > >
> > > Adam writes:
> > >
> > > "...TKW of 77 grams is recorded for NWA 2989.
> This
> > > weight does
> > > not reflect any pairings since I do not have
> > > accurate figures."
> > >
> > > It is probably paired with NWA 2656, of which I
> own
> > > a beautiful slice
> > > weighing 0.29 grams.
> > >
> > > Adam also writes: "... the lowest price you will
> > > find on EBay."
> > >
> > > And right he is! I paid $290 for my little,
> > > beautiful NWA 2656 (which I do not
> > > regret!). Go figure and do the maths what I
> would
> > > have had to pay for more than
> > > 10 times the weight (3.7 grams) of my 0.29-gram
> > > ACAP.
> > >
> > > The specimen that comes closest to the one I
> > > purchased seems to be the 2.55-gram
> > > part slice - also very metal-rich and almost
> like my
> > > little NWA 2656 with all its
> > > delicate veins and veinlets. It doesn't show
> those
> > > slender troilite inclusions but
> > > this part slice would be my choice no. 2. I'd
> buy
> > > both of them if I could afford it!
> > >
> > > What makes acapulcoites, and especially this
> one, so
> > > interesting is their achondritic,
> > > granular texture and, at the same time, they
> have an
> > > ordinary chondrite mineralogy.
> > > That's why you find both abundant metal (similar
> to
> > > H chondrites!) and sulfide in them.
> > >
> > > Another interesting feature is the rare
> occurrence
> > > of relict chondrules, and, as they do
> > > not plot too far away from both angrites,
> > > brachinites on the one hand, and from ureilites
> > > on the other, you will also find grain
> boundaries
> > > meeting in triple junctions (120?).
> > >
> > >
> > > Best Acapucoitic wishes,
> > > and Good Night,
> > >
> > > Bernd
> > >
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> > >
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> > >
> >
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Received on Tue 14 Feb 2006 09:39:19 PM PST