[meteorite-list] ** NWA 1942 and NWA 2620 classification ? **

From: Michael Farmer <meteoritehunter_at_meteoritecentral.com>
Date: Wed Jan 5 17:55:21 2005
Message-ID: <000801c4f379$b85dbd80$0200a8c0_at_S0031628003>

Adam, that explains nothing other than the simple fact the it seems that a
scientist has assigned the same number to two different meteorites.
Mike Farmer
----- Original Message -----
From: "Adam Hupe" <raremeteorites_at_comcast.net>
To: <meteorite-list_at_meteoritecentral.com>
Sent: Wednesday, January 05, 2005 3:39 PM
Subject: Re: [meteorite-list] ** NWA 1942 and NWA 2620 classification ? **


> Here is a link, scroll down to NWA 2620:
> http://www4.nau.edu/meteorite/Meteorite/H-Chond.html
>
> Kind regards,
>
> Adam
>
> ----- Original Message -----
> From: "Michael Farmer" <meteoritehunter_at_comcast.net>
> To: "Adam Hupe" <raremeteorites_at_comcast.net>;
> <meteorite-list_at_meteoritecentral.com>
> Sent: Wednesday, January 05, 2005 2:42 PM
> Subject: Re: [meteorite-list] ** NWA 1942 and NWA 2620 classification ? **
>
>
>> Adam, then explaine the email below, clearly a mistake has been made,
>> have
>> you spoken to Ted?
>> I am doing this publicly since the question was raied here and I have
>> sold
>> many pieces of the NWA 2620 Olivine Diogenite.
>> Michael Farmer
>> I have called Ted today, with no answer.
>>
>> Email dated 12 December 2004
>> "Mike: below and attached are the classifications that I can do for now.
>> Have a
>> good trip.
>>
>> Ted
>>
>>
>>
>> NWA 2620 (F5)
>>
>> Yellowish-green to brown, friable olivine diogenite. with orthopyroxene
>> grains up to 21 mm in size; rare olivine grains. Unzoned olivine, Fa28.0;
>> FeO/MgO = 44; orthopyroxene, Fs23.4Wo1.5; FeO/MnO = 24.9; chromite, cr# =
>> 87; mg# = 19.4. Also contains minor metal (Ni = 0.29 wt %; Co = 0.59 wt
>> %)
>> and troilite. No plagioclase was observed. Shock level is S2-3; lightly
>> to
>> moderately weathered. Likely paired with NWA 1877.
>>
>>
>>
>> NWA 2631 (F7)
>>
>> H5: Fa19.2; S1 W1
>>
>>
>>
>> NWA 2632 (F8)
>>
>> LL3.2: Fa1.1-37.4; (Cr2O3 = 0.15-0.37; mean = 0.33 wt %); S1 W1.
>>
>>
>>
>> NWA 2633 (F9)
>>
>> CO3.1: Fa 7.7 ? 44.2 (Cr2O3 = 0.05-0.34 wt %); S1 W2; contains many small
>> CAI inclusions.
>>
>>
>>
>> NWA 2634 (F10)
>>
>> Ureilite, mosaicized type; olivine cores, Fa21.4, rims Fa11.1; pigeonite,
>> Fs18.8 Wo9.9; augite, Fs17.0 Wo16.6; vein metal, 4.3 wt % Ni. Highly
> shocked
>> with pyroxenes reduced to mosaic texture, olivine less so. Shock level is
> S5
>> and low weathering grade.
>>
>>
>>
>> NWA 2635 (F11)
>>
>> H7: extremely rare meteorite, only two known outside of Antarctica;
>> highly
>> equilibrated and recrystallized. Olivine = Fa18.9, FeO/MnO = 37.7
>> (compositional range within the precision of the microprobe).
> Orthopyroxene,
>> Fs16.1 Wo3.7; metal, Ni = 17.3 wt %; troilite, Ni = 1.40wt %. S1 W2.
>>
>> ----- Original Message -----
>> From: "Adam Hupe" <raremeteorites_at_comcast.net>
>> To: <meteorite-list_at_meteoritecentral.com>
>> Sent: Wednesday, January 05, 2005 3:12 PM
>> Subject: Re: [meteorite-list] ** NWA 1942 and NWA 2620 classification ?
>> **
>>
>>
>> >I checked it out before posting earlier. NWA2620 in an H4.
>> >
>> > Kind Regards,
>> >
>> > Adam
>> >
>> > ----- Original Message -----
>> > From: "Jim Strope" <jim_at_catchafallingstar.com>
>> > To: <meteorite-list_at_meteoritecentral.com>
>> > Sent: Wednesday, January 05, 2005 2:13 PM
>> > Subject: Re: [meteorite-list] ** NWA 1942 and NWA 2620 classification ?
> **
>> >
>> >
>> >> Seems to me since you are so short on time, one email to Ted is more
>> >> advantageous than playing email ping pong with Adam. Why not let the
>> >> Scientist clear it up?
>> >>
>> >> Jim Strope
>> >> 421 Fourth Street
>> >> Glen Dale, WV 26038
>> >>
>> >> http://www.catchafallingstar.com
>> >>
>> >> ----- Original Message -----
>> >> From: "Michael Farmer" <meteoritehunter_at_comcast.net>
>> >> To: "Adam Hupe" <raremeteorites_at_comcast.net>;
>> >> <meteorite-list_at_meteoritecentral.com>
>> >> Sent: Wednesday, January 05, 2005 5:07 PM
>> >> Subject: Re: [meteorite-list] ** NWA 1942 and NWA 2620 classification
>> >> ?
>> >> **
>> >>
>> >>
>> >> > And?
>> >> > ----- Original Message -----
>> >> > From: "Adam Hupe" <raremeteorites_at_comcast.net>
>> >> > To: <meteorite-list_at_meteoritecentral.com>
>> >> > Sent: Wednesday, January 05, 2005 2:49 PM
>> >> > Subject: Re: [meteorite-list] ** NWA 1942 and NWA 2620
>> >> > classification
> ?
>> > **
>> >> >
>> >> >
>> >> >>I did check it out.
>> >> >>
>> >> >> Adam
>> >> >>
>> >> >> ----- Original Message -----
>> >> >> From: "Michael Farmer" <meteoritehunter_at_comcast.net>
>> >> >> To: "Adam Hupe" <raremeteorites_at_comcast.net>;
>> >> >> <meteorite-list_at_meteoritecentral.com>
>> >> >> Sent: Wednesday, January 05, 2005 1:59 PM
>> >> >> Subject: Re: [meteorite-list] ** NWA 1942 and NWA 2620
> classification
>> >> >> ?
>> >> >> **
>> >> >>
>> >> >>
>> >> >>> Adam, I suggest you contact Ted Bunch, he assigned me NWA 2620 for
> my
>> >> >>> olivine diogenite.
>> >> >>> I am leaving in 40 hours so I have no time to do it.
>> >> >>> Mike
>> >> >>> ----- Original Message -----
>> >> >>> From: "Adam Hupe" <raremeteorites_at_comcast.net>
>> >> >>> To: <meteorite-list_at_meteoritecentral.com>
>> >> >>> Sent: Wednesday, January 05, 2005 12:55 PM
>> >> >>> Subject: Re: [meteorite-list] ** NWA 1942 and NWA 2620
> classification
>> > ?
>> >> >>> **
>> >> >>>
>> >> >>>
>> >> >>> > NWA 2620 is not an olivine diogenite, it is an H4, Main mass
>> >> >>> > Hupe
>> >> >>> > Collection. NWA 1827 was studied at the University of
>> >> >>> > Washington
>> > not
>> >> >> NAU
>> >> >>> > which was reported in error to the List previously. Scientist
> read
>> >> >>> > this
>> >> >>> > List so be careful about what is being put out in print.
>> >> >>> >
>> >> >>> > All the best,
>> >> >>> >
>> >> >>> > Adam
>> >> >>> >
>> >> >>> > ----- Original Message -----
>> >> >>> > From: "Michael Farmer" <meteoritehunter_at_comcast.net>
>> >> >>> > To: "Pel? Pierre-Marie" <pierremariepele_at_yahoo.fr>;
> "MeteoriteList"
>> >> >>> > <meteorite-list_at_meteoritecentral.com>
>> >> >>> > Sent: Wednesday, January 05, 2005 11:21 AM
>> >> >>> > Subject: Re: [meteorite-list] ** NWA 1942 and NWA 2620
>> > classification
>> >> >>> > ?
>> >> >> **
>> >> >>> >
>> >> >>> >
>> >> >>> >> Pierre, clearly an error on their part. I will contact Dr Bunch
>> >> >>> >> and
>> >> >> have
>> >> >>> > it
>> >> >>> >> looked into.
>> >> >>> >> Mike
>> >> >>> >> ----- Original Message -----
>> >> >>> >> From: "Pel? Pierre-Marie" <pierremariepele_at_yahoo.fr>
>> >> >>> >> To: "MeteoriteList" <meteorite-list_at_meteoritecentral.com>
>> >> >>> >> Sent: Wednesday, January 05, 2005 12:18 PM
>> >> >>> >> Subject: [meteorite-list] ** NWA 1942 and NWA 2620
> classification
>> >> >>> >> ?
>> >> >>> >> **
>> >> >>> >>
>> >> >>> >>
>> >> >>> >> > Hello to the List members.
>> >> >>> >> >
>> >> >>> >> > I've a question about the classification of NWA 1942
>> >> >>> >> > and NWA 2620.
>> >> >>> >> >
>> >> >>> >> > NWA 1942 is mostly known as a howardite but I found it
>> >> >>> >> > was classified as a L4 by NAU Laboratory in 2004*.
>> >> >>> >> >
>> >> >>> >> > NWA 2620 is known as a diogenite but was classified by
>> >> >>> >> > NAU as a H4 in 2004*.
>> >> >>> >> >
>> >> >>> >> > * these 2 classifications will be published in next
>> >> >>> >> > MetBul (nr 89) by NAU.
>> >> >>> >> >
>> >> >>> >> > Is this a problem of numbers (maybe two laboratories
>> >> >>> >> > used the same NWA number for different meteorites).
>> >> >>> >> > How are determined the range of NWA numbers and are
>> >> >>> >> > they assigned to a single laboratory by the NomCom ?
>> >> >>> >> >
>> >> >>> >> > Thanks a lot for your help,
>> >> >>> >> >
>> >> >>> >> > Pierre-Marie PELE
>> >> >>> >> > www.meteor-center.com
>> >> >>> >> >
>> >> >>> >> >
>> >> >>> >> >
>> >> >>> >> >
>> >> >>> >> >
>> >> >>> >> >
>> >> >>> >> > D?couvrez le nouveau Yahoo! Mail : 250 Mo d'espace de
>> >> >>> >> > stockage
>> > pour
>> >> >> vos
>> >> >>> >> > mails !
>> >> >>> >> > Cr?ez votre Yahoo! Mail sur http://fr.mail.yahoo.com/
>> >> >>> >> > ______________________________________________
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>> >> >>> >> >
>> >> >>> >>
>> >> >>> >>
>> >> >>> >> ______________________________________________
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>> >> >>> >
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>> >> >>>
>> >> >>>
>> >> >>>
>> >> >>
>> >> >>
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>> >> >>
>> >> >
>> >> >
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>> >>
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Received on Wed 05 Jan 2005 05:55:52 PM PST