[meteorite-list] Re: NWA 2921 Classification CORRECTION

[Ingo Herkstroeter]

>Hi Greg and all!

I´m sure that there are a lot of mistakes in the darkness of classifi-cation
and I´m also sure that we all have this feeling from time to time.
If there is a stone in my collection, let´s say a R3.8 and I see a stone on
the table of a dealer, which shows the same characteristic features on the
outside and also a cut looks identical (same color and inclusions) but is
classified as R4. Who realy think it´s a different stone???
How many Rs should exist under this conditions who are unpaired??? What will
happen, when I give one stone of a significant fell to one lab and one other
to the next lab? I would get to claasifications and they could be
differently, cause the used micro probes are different or the rock it self
is different, caused by brecciation or xenolithic clasts.
And finally: Where is the sense of data, if it looks like there is nobody
who compares them???

 --- Ursprüngliche Nachricht ---
> Von: "Greg Hupe" <gmhupe at tampabay.rr.com>
> An: "Christian Anger" <christian.anger at aon.at>
> Kopie: meteorite-list at meteoritecentral.com, marcin at meteoryt.net
> Betreff: [meteorite-list] Re: NWA 2921 Classification CORRECTION
> Datum: Thu, 22 Sep 2005 14:49:05 -0400
> 
> Hi Christian, Marcin and all,
> 
> Just another example of our(my) ever expanding knowledge of these 
> extraterrestrials. I am never too stubborn or let my pride get in the way
> to 
> make a correction when it comes up. It is our duty to make these
> corrections 
> when needed. With all of the material going through the labs now, I am 
> surprised mistakes don't happen more often.
> 
> Take care everyone,
> Greg
> P.S. Be sure to check out my new R3.8 (likely paired to some others out 
> there...) ;-)
> 
> ----- Original Message ----- 
> From: "Christian Anger" <christian.anger at aon.at>
> To: <meteorite-list at meteoritecentral.com>
> Cc: <gmhupe at tampabay.rr.com>
> Sent: Thursday, September 22, 2005 2:33 PM
> Subject: RE: NWA 2921 Classification CORRECTION
> 
> 
> Hi all,
> 
> a mix up can always happen.
> 
> It can happen to everyone.
> 
> As Greg said, co-operation and exchange of experience
> always brings good results.
> 
> That's was a good example why this list exists.
> 
> Thanks to Greg for clearing this subject and for his honesty.
> No doubt on his reliability as well on Dr. Bunch's.
> 
> best regards,
> 
> Christian
> 
> 
> 
> IMCA #2673
> www.austromet.com
> 
> Christian Anger
> Korngasse 6
> 2405 Bad Deutsch-Altenburg
> AUSTRIA
> 
> email: christian.anger at aon.at
> 
> -----Original Message-----
> From: meteorite-list-bounces at meteoritecentral.com
> [mailto:meteorite-list-bounces at meteoritecentral.com] On Behalf Of Greg
> Hupe
> Sent: Thursday, September 22, 2005 7:30 PM
> To: meteorite-list at meteoritecentral.com
> Cc: christian.anger at aon.at
> Subject: [meteorite-list] NWA 2921 Classification CORRECTION
> 
> Dear List Members,
> 
> I just received an email from Dr. Bunch, there was an error in the lab.
> Here
> 
> is part of his email:
> 
> Dr. Bunch's reply:
> "Yes there is a mistake. Your section number is RHH4 and was read as PHH4,
> the data of which is ET's CO3.5. Yours is an R3.8. ________complied the
> data
> 
> before I left and I did not double check it. ---
> 
> R3.8     S1            W3            Fa39.3 ± 1.2; FeO/MnO = 72-76  (we
> started to use this constraint which is foolproof in identifying some
> carbonaceous chondrites, don't need O2 data anymore). We have used our
> hundreds of analyses to provide the following FeO/MnO ranges: R = 68-90;
> CK,
> 
> 100 - 130; CO, 110- 150; CV> 140). Some overlap but other compositional
> characteristics overcome the minor overlap of CK and CO, which do not look
> the same anyhow.
> 
> I don't know who said that it looked like (NWA)3146, many Rs do but they
> are
> 
> not paired with (NWA)3146...
> Sorry about the mistake and thank you for pointing it out."
> 
> 
> 
> Thank you Christian, Marcin and all who brought attention to this mistake.
> It just shows that when we work together, good things happen. I have
> corrected the current auctions on eBay to reflect the R3.8 classification
> and have notified the two members who purchased some using "Buy it Now".
> 
> 
> 
> Now, I wonder if crow tastes good with mustard...
> 
> 
> 
> 
> Best regards,
> 
> Greg Hupe
> The Hupe Collection
> naturesvault (eBay)
> gmhupe at tampabay.rr.com
> IMCA 2185
> 
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> 
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