[meteorite-list] Amgala versus Zag
From: Adam Hupe <adamhupe_at_meteoritecentral.com>
Date: Thu Apr 22 10:32:49 2004
It will be interesting to see the lab results. I wish we would have had
more time to prepare for the release of this new material but mounting costs
and competition forced us to put it on the market prematurely in order to
protect our considerable investment. As was the case for Park Forest and a
few other falls dealers sometimes do not wait for classifications before
making material available.
All the best
----- Original Message -----
To: "Adam Hupe" <adamhupe_at_comcast.net>
Sent: Sunday, March 14, 2004 10:59 AM
Subject: Re: [meteorite-list] Amgala versus Zag
> Thanx for the update and supporting information for the cost basis. As I
said, this fall sure
> looks a lot like Zag to me in many ways. I did some more visual
comparisons and of course my
> untrained eye cannot see these differences when looking at just one one
stone's(less than 20
> grams) cut face. I am not implying they are the same meteorite...just that
they look similar.
> As for polymict versus regolith breccia...can these two terms be
interchangeable? A polymict
> breccia is made up of clasts/fragments of different materials probably
caused by a impact
> mixing, while a regolith breccia implies a breccia formed at the surface
with a mixture of
> different materials caused by impacts. A regolith breccia might be
considered a special type of
> polymict breccia.
> As for type 3 chondrules...well I see a few chondrules that look almost
perfect to me...but
> only a couple. What do I know anyway???
> It should be interesting to see how this material is classified out...in
comparison to Zag.
> > Hello All,
> > At first glance Amgala is somewhat similar looking to Zag although there
> > noticeable differences between the two. I do not believe Amgala is
> > classify as a regolith breccia but rather a polymict breccia. Unlike
> > no type 3 areas have been identified. Two laboratories are currently
> > studying Amgala and neither one has observed water bearing minerals but
> > interesting clasts have been found which we will report on later.
> > party suggested halite because ~10% of the most recently collected
> > stones show some oxidation on the exposed surfaces. This oxidation is
> > minor and could be removed easily with an air abrasion tool but we chose
> > to in order to preserve these stones in as found condition.
> > As far as the price dropping into the $5.00 to $7.00 a gram range it is
> > doubtful because there is less than 12 kilograms TKW and a good portion
> > already been sold to collectors for between $7.50 a gram for fragments
> > $12.00 a gram for fully crusted specimens. The seventh and final trip
> > the area by the Moroccan half of Team LunarRock only produced five
> > making it less than cost effective to return to the region. All
> > are that this is a very small fall with precious little more material
> > out. After all, nomads avoid this area and soldiers have been
> > searching it for months now. Only the soldiers know which areas are
> > and which are not and they are done searching because of the lack of new
> > finds associated with this fall.
> > We rang up a tremendous amount of expenses pursuing this fall including
> > communication, transportation, specimen purchases, sample material,
> > supplies, shipping and lab fee costs. 26% of the recovered stones we
> > the high field price for turned out to be a black chondrite not related
> > this fall. This increased our acquisition costs by nearly the same
> > percentage. Pursuing Amgala was an expensive undertaking. Was it worth
> > Yes, this is some very handsome material with the nicest jet-black
> > crust I have seen not to mention the contrast provided by the polymict
> > breccia texture.
> > We will update as lab results come in which promise to be interesting.
> > All the best,
> > Adam
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Received on Sun 14 Mar 2004 02:09:16 PM PST