Alan Rubin said he gets over half of his visual guesses wrong.  I guess
you're more talented than the man who literally wrote the book on meteorite
mineralogy.  Congratulations.

On Tue, Jul 23, 2024, 10:00?AM Tomasz Jakubowski <illaenus at wp.pl> wrote:

> Hello all,
> I have to disagree with you. As a geologist / collector / hunter /
> scientist with around 23 years experience in recognize meteorites I can
> easily tell a type for example CC, it is quite easy texture differences
> between CC types like : chondrule size, matrix (vol%), chondrule  (vol%),
> CAI's  (vol%), metal  (vol%). IF we spoke about CO type, it is pretty easy
> to say basis on chondrule size (CO is similar in chondrule size with CM,
> but CM have more matrix and slightly larger chondrules, that is in general,
> but 90% of collectors know differences between CM and CO on cut surface).
> That is based on cut surface, but whole specimens also look different, if
> we speak about NWA CO have characterised surfaces (especially if they are
> slightly sandblasted). We don't speak about classification, because no one
> writes NWA numbers. But commonly, recognizing a CO type is quite easy. I
> was working in science and that is completely don't harmful for science
> (harmful would be if someone would publish this in science paper, but that
> would not be possible because of reviews done before publishing).
> If you can't tell that something is a meteorite without a test, well that
> is your private problem, but common, that is not a difficult.
>
> All the best
> Tomasz Jakubowski
>
> Dnia 23 lipca 2024 15:31 Rhett Bourland via Meteorite-list <
> meteorite-list at meteoritecentral.com> napisa?(a):
>
> Educated guesses aren't classifications.  Nobody can do that.  I've got
> close to a couple hundred pieces in my collection that I've built up over
> the past 25 years.  I own classes of meteorites that most museums don't
> even have because the museums that I got them from told me where the other
> pieces were.  I can safely say that I have handled and seen even more in
> that time.  The IMCA got started in my living room. I wouldn't even call
> something a meteorite unless it got tested.  As Anne Black recently said,
> people guessing what they have and presenting it as such is nothing but
> harmful for the science and commercial trade of these rocks and that woman
> has seen and handled stuff that I can only dream of.
>
> On Mon, Jul 22, 2024, 3:37?PM <mendy.ouzillou at gmail.com> wrote:
>
> Rhett,
>
>
>
> Our North African meteorite family has earned the right to make educated
> guesses, especially after they have proven themselves to be reputable
> dealers AND have examined the specimen. They have handled far more
> meteorites than most dealers and collectors. There is no surprise that
> they, and Mohamed in particular, can tell the difference between a CO and
> another type of meteorite. Mohamed was fully transparent and clearly stated
> that it is unclassified. There is nothing inauthentic about the posting.
>
>
>
> I have no ulterior motive in responding to this post other than desiring
> respectful discourse.
>
>
>
> Sincerely,
>
>
>
> Mendy
>
>
>
> *From:* Meteorite-list <meteorite-list-bounces at meteoritecentral.com> *On
> Behalf Of *Rhett Bourland via Meteorite-list
> *Sent:* Saturday, July 20, 2024 9:53 AM
> *To:* Benzaki Mohamed <kemkemexpedition at gmail.com>
> *Cc:* Meteorite List <Meteorite-list at meteoritecentral.com>
> *Subject:* Re: [meteorite-list] Meteorite unclassified
>
>
>
> It's unclassified and yet you're calling it a CO?  That doesn't sound very
> authentic to me.
>
>
>
> On Sat, Jul 20, 2024, 10:17?AM Benzaki Mohamed via Meteorite-list <
> meteorite-list at meteoritecentral.com> wrote:
>
> Hi all members hop have a good day.
>
>  Everyone interested will be interested by a largeste co carbonaceous
> unclassified please contacte  me.all beste.
>
> ______________________________________________
> Meteorite-list mailing list
> Meteorite-list at meteoritecentral.com
> https://pairlist2.pair.net/mailman/listinfo/meteorite-list
>
> ______________________________________________
> Meteorite-list mailing list
> Meteorite-list at meteoritecentral.com
> https://pairlist2.pair.net/mailman/listinfo/meteorite-list
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://pairlist2.pair.net/pipermail/meteorite-list/attachments/20240723/1ee5a92c/attachment-0001.htm>