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

From: Jim Strope <jim_at_meteoritecentral.com>
Date: Wed Jan 5 18:36:06 2005
Message-ID: <00b401c4f37f$57e491d0$6501a8c0_at_DJQVK441>

David Weir References NWA 2620 in the following webpage on NWA 2115:

 http://www.geocities.com/~dweir/protected_NWA2115.HTM


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 5:55 PM
Subject: Re: [meteorite-list] ** NWA 1942 and NWA 2620 classification ? **


> 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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Received on Wed 05 Jan 2005 06:36:13 PM PST