[meteorite-list] status of NWA brachinites

[Zelimir Gabelica]

Hi Martin,

I fully agree.

To be complete, here is what I have in my archives:

..."NWA 4969 (BRA, Algeria, tkw = 1 at 180 g) from Marcin, is paired with NWA 
4882 (Algeria, from Hupé's, BRA, tkw = 2@ 3096 g), but apparently not with 
NWA 3151 (BRA, Hupé's, tkw = 1 at 1500 grams), nor with NWXA 5191 (1 at 26.5 g)

With  the new NWA 5471 from Heir's, this indeed makes 4 brachinites from 
the "NWA" vast strewnfield.

However, in Met. Bull. database, we find the following brachinites from 
"NWA", this better completing the picture:

NWA 595 (Cottingham, Morocco (?), 1 at 196 g)
NWA 3151 (Hupé's, NWA (Morocco ?), 1 at 1500 g)
NWA 4872 (Aaronson, Algeria, 1 at 3000 g)
NWA 4874 (Aaronson, Algeria, 1 at 28 g) (can it be paired with NWA 4872 above ???)
NWA 4876 (anonymous, NWA ( Morocco ?), 1 at 130 g
NWA 4882 (G. Hupé, Algeria, 2 at 3096 g)
NWA 4969 (M. Cimala, NWA (Morocco ?), 1 at 180 g
NWA 5191 (anonymous, found in Morocco desert, 1 at 26.5, said to be paired 
with NWA 3151, thus suggesting this latter was also found in Morocco

NWA 5471 (C. Heir's, Morocco (??), 1 (??)@538 g, paired with ???? (not yet 
in Met. Bull.)
----------
Total: not copunting pairings, we find 9 different meteorite names (NWA 
numbers), probably 10 separate pieces, totalling 8694,5 grams

Question: How far are these data (Met Bulll database + NWA 5471) correct 
and complete ?

Who can complete, possibly remove the ???'s and add comments about 
pairings, so that we all can update our archives regarding NWA brachinites?

Bernd? Greg ? Marcin ? Martin ? or Jeff ?

Thanks and best wishes,

Zelimir



A 13:40 02/12/2008 +0100, Martin Altmann a écrit :

>Oooops, little correction, was in a brachinite flush.

>

>Must be NWA 4882 not 3151.

>

>But NWA 3151 is cool stuff too.

>And Marcin's NWA 4969.

>

>Take them all. All are the money well worth.

>

>So, something forgotten?

>

>Crazy. To be able to buy 5 brachinites in one day.

>Never happened before in history.

>

>Best

>Martin

>

>-----Ursprüngliche Nachricht-----

>Von: meteorite-list-bounces at meteoritecentral.com 

>[mailto:meteorite-list-bounces at meteoritecentral.com] Im Auftrag von Martin 

>Altmann

>Gesendet: Dienstag, 2. Dezember 2008 13:04

>An: meteorite-list at meteoritecentral.com

>Betreff: Re: [meteorite-list] Brachinites & NWA 4882

>

>Good Morning list,

>

>and ooops what's going on?

>

>I'm sure Dirk wanted to express his enthusiasm rather than to offend someone.

>

>Friends! Brachinites! Can you have too many of them in the collection???

>There are so few finds, such a tiny batch of material and yet they are so 

>diverse and heterogeneous, that brachinites are still a really enigmatic class.

>

>Always a good read, David Weir's Studies:   http://www.meteoritestudies.com/

>

>When we decided to blow our NWA 5471, no matter whether it was the main 

>mass or small-budget-sizes, the price-finding was simple. We checked the 

>prices on the dealers' pages and the results on ebay of the few pieces 

>offered there, to be sure, to have a silly low price.

>

>Check it by your own.

>200$ a gram is affordable standard;

>everything below 200$ is a good buy;

>everything below 150$ is a bargain;

>everything below 100$ is a MUST and a categorical imperative.

>

>So we made 65$ a gram as a gift.

>

>Now Greg tells us, that his NWA 3151 is available at an even lower rate!

>

>What are the consequences? Good heavens - Buy them! Buy a NWA 3151, buy a 

>NWA 5471, if you have already a 3151, take additionally a 5471, if you own 

>a 5471, add a 3151. What are you waiting for, prices went silly!

>Bah, prices are in ruin

>                 Matteo 27:4

>

>Follow me. Why "silly"?

>

>Stats, stats, stats!

>

>Use the formidable instrument of the Meteoritical Bulletin Database:

>http://tin.er.usgs.gov/meteor/metbull.php

>

>Nineteen (including ours not listed yet) finds and numbers.

>Pairing indications often mentioned in the descriptions,

>hence probably we're talking about less than a dozen different falls.

>Quantities, sum them up!  10kgs. That is all.

>Jump in the garden and grab 10kgs of stones from the rose bed to get a 

>notion of the total volume in existence on Earth.

>

>What are you waiting for?

>Seen the numbers of finds and the weights, it's the same, as you would get 

>offered a Moon at 10$ a gram.

>

>That tomorrow a ton of that stuff will fall?

>Unlikely, I guess.

>Since the day Jacob rested his weary head on the black baethyl to dream 

>his dream of his ladder there were found only those few handfuls of tiny 

>stones.

>

>Please - ANSMET, NIPR, EUROMET, PRIC with all their manpower and the 

>primary and secondary means of maybe 1 billion together in these 31 years,

>they recovered half a pound of that stuff.

>

>Give 10,000$ to Greg or to us and you can have another half a pound.

>

>That's what I call a performance.

>And that's that "service to science", which sounds sometimes so solemnly, 

>and where about some are smiling, but nevertheless is true.

>

>Huh, and revilers of dry food:

>Aren't these both not the best proves, that NWAs do have a "personality"?

>

>Eagles Nest. Found by a hunter in desert.

>Reid.        Found by a hunter in desert.

>Hughes. Found by a hunter in desert.

>NWA 3151.    Found by a hunter in desert.

>NWA 5471     Found by a hunter in desert.

>

>History reloaded!

>

>(Shhht have you noticed that NWA 3151 as well as NWA 5471 are looking 

>prettier than Eagles Nest?).

>

>

>Quintessence of that little discussion is:

>

>Chladni's Heirs say:  We give you the Koh-I-Noor for a dime!

>The Hupés say: We give you the Millennium Star for a nickel!

>

>The collectors know that.

>

>Hey universities, colleges - these are our sweet pills to ease your pains 

>of budget shortage!

>

>Good Morning Chicago, good morning London! Guten Morgen Wien! Bonjour Paris!

>Shubh Sanyankal Calcutta! Grueziwohl Bern! Salve Vatican........

>Shhhhh, Perth, Adelaide, Victoria - homes of all brachinites are still 

>slumbering on the other side of the globe. O joyful awakening, addition to 

>the family!

>

>Wake up! And set for a moment these triceratops skulls, the fancy rock 

>crystals, the silver curls, the rubies aside. Such expensive mass stuff 

>you can buy in all eternity.

>

>Brachinites? You don't have something rarer but only today so cheap in 

>your collections.

>And when they are gone, they're gone.

>

>Don't want to read as a doter your swan songs about the Golden Age of 

>meteorites.

>You all were here, you all were informed.

>

>Ask NASA, ask ESA, ask IAXA - will it take a hundred years or 200 years - 

>until probes will hunt for the remainders of the brachinite parent bodie(s)

>in space?

>

>

>Sounds all quite exaggerated, doesn't it?

>

>Sorry. These are the proportions, when we're talking about brachinites.

>These are the facts, when we're talking about meteorites.

>

>Brachinites are space exploration 2008-2050.

>

>And these are some and by far not all aspects, why we all and often the 

>professionals too,

>do love and venerate our meteorites.

>

>Best!

>Martin

>

>

>

>

>-----Ursprüngliche Nachricht-----

>Von: meteorite-list-bounces at meteoritecentral.com 

>[mailto:meteorite-list-bounces at meteoritecentral.com] Im Auftrag von Greg Hupe

>Gesendet: Dienstag, 2. Dezember 2008 02:18

>An: drtanuki at yahoo.com

>Cc: meteorite-list at meteoritecentral.com

>Betreff: [meteorite-list] Brachinites & NWA 4882

>

>Hello Dirk and List,

>

>Dirk, since you would like to promote brachinite material, here is a little

>insight you may not be aware of:

>

>NWA 4882 Brachinite (unpaired) - I have made private sales several months

>PRIOR to Martin's public offering, at much less than their great price per

>gram. I know MY customers are very happy with their greatly discounted rate!

>I simply do not have time to offer all of the different and new meteorites I

>have at one time publicly, AND I am not trying to interfer with their sales,

>but since Dirk brought this out in what I perceive in a negative tone, here

>is one heck of a Brachinite for serious collections:

>

>Click here to view complete slice of NWA 4882 measuring 130mm wide!

>

>http://www.lunarrock.com/nwa4882/nwa4882slice.jpg

>

>

>

>Click here to view complete NWA 4882 stone before cutting:

>

>http://www.lunarrock.com/nwa4882/nwa4882.jpg

>

>

>

>Click here to view close-up of polished NWA 4882 matrix:

>

>http://www.lunarrock.com/nwa4882/nwa4882closeup.jpg

>

>

>Official Classification:

>Northwest Africa 4882

>

>Algeria

>

>Find: July 2007

>

>Achondrite (brachinite)

>

>History: Purchased by Greg Hupé in July 2007 from a dealer in Tagounite,

>Morocco.

>

>Physical characteristics: Two dense, dark brown, broken rounded stones (2891

>g and 206 g) with weathered fusion crust on some original exterior surfaces

>and thin desert varnish coatings on hackly broken surfaces.

>

>Petrography: (A. Irving and S. Kuehner, UWS) Coarse-grained rock (mostly

>0.2-0.8 mm) with protogranular texture, composed predominantly of olivine

>with subordinate green, Cr-bearing diopside, K-poor plagioclase, chromite,

>iron sulfide, and kamacite (partially altered to iron hydroxides).

>Plagioclase is interstitial to mafic silicates and is heterogeneous in

>distribution. Very fine-grained (2-10 µm), polyphase assemblages composed

>mostly of orthopyroxene, Ni-bearing pyrrhotite and Ni-free metal with

>variable amounts of fayalite and chromite occur around larger pyrrhotite

>grains within olivine, and also as small, isolated apparent inclusions

>within olivine.

>

>Geochemistry: Olivine (Fa35.0-35.2, FeO/MnO = 70.9-71.3), clinopyroxene

>(Fs9.3Wo47.1, FeO/MnO = 38.6, Cr2O3 = 0.76wt%, Al2O3 = 1.05 wt%),

>plagioclase (An32.1- 37.6Or0.3-0.5), chromite [Cr/(Cr + Al) = 0.717, Mg/(Mg

>+ Fe) = 0.239, TiO2 = 0.71 wt%, ZnO = 0.30 wt%]. Oxygen isotopes: (D.

>Rumble, CIW) Replicate analyses of acid-washed silicate material by laser

>fluorination gave, respectively, δ18O = 2.064, 2.095; δ17O = 4.368, 4.455;

>Δ17O = -0.234, -0.248 per mil.

>

>Classification: Achondrite (brachinite).

>

>Specimens: A total of 20.4 g of sample and one polished thin section are on

>deposit at UWS. GHupé holds the main mass (actually now in a private

>collection).

>

>

>

>I sent this to a professional cutter who used a wire saw and cut these at

>3mm thick and polished to a high luster. If you want a large museum quality

>specimen at an even BETTER rate, be sure to contact me off list.

>

>

>

>I have already placed over half of this material into large collections,

>which only leaves 15 slices and the 206g fragment. Half are the larger

>slices like the one featured above.

>

>

>

>Best regards,

>Greg

>

>====================

>Greg Hupe

>The Hupe Collection

>NaturesVault (eBay)

>gmhupe at htn.net

>www.LunarRock.com

>IMCA 3163

>====================

>Click here for my current eBay auctions:

>http://search.ebay.com/_W0QQsassZnaturesvault

>

>

>

>----- Original Message -----

>From: "drtanuki" <drtanuki at yahoo.com>

>To: <STARSANDSCOPES at aol.com>; <meteorite-list at meteoritecentral.com>

>Sent: Monday, December 01, 2008 7:38 PM

>Subject: Re: [meteorite-list] NEW Olivine Diogenite - NWA 4223 - AD

>

>

> > Hello Tom and List,

> >  I would suggest that you check out the fantastic NWA 5471 brachinite that

> > Martin and Stefan are selling for a VERY REASONABLE price; more than 2

> > grams of the material instead of a thin section (you can make your own

> > thin sections- several).

> >

> >  Thank you Martin and Stefan for your very generous price for such a rare

> > classification.

> >

> > Dirk Ross...Tokyo

> > http://www.meteoritesjapan.com

> > http://www.insekijapan.com

> >

> >

> >

> > --- On Tue, 12/2/08, STARSANDSCOPES at aol.com <STARSANDSCOPES at aol.com>

> > wrote:

> >

> >> From: STARSANDSCOPES at aol.com <STARSANDSCOPES at aol.com>

> >> Subject: Re: [meteorite-list] NEW Olivine Diogenite - NWA 4223 - AD

> >> To: meteorite-list at meteoritecentral.com

> >> Date: Tuesday, December 2, 2008, 9:23 AM

> >> Hi list members,  For those who are interested in thin

> >> sections.   Greg has

> >> been kind enough to (previously) lend me the NWA 3151

> >> Brachinite  that he has

> >> for sale.  My micrograph article in Meteorite Times

> >> December is on this thin

> >> section.

> >>

> >> I felt obliged to say it is a wonderful  sample prepared

> >> splendidly!  I

> >> worked with it up to a magnification of 760X  with great

> >> results.  If you are

> >> thinking of adding a thin to your  collection, I would

> >> recommend this one and check

> >> out the article.  Bernd  Pauli has provided me with three

> >> excellent wide

> >> field cross polarized light  micrographs that are also

> >> included.

> >>

> >> Tom Phillips

> >>

> >> In a message dated 12/1/2008 4:36:02 P.M. Mountain

> >> Standard Time,

> >> gmhupe at htn.net writes:

> >> Dear List Members,

> >>

> >> It is my  pleasure to announce a NEW Olivine Diogenite, NWA

> >> 4223, the third

> >> member of  this exclusive group. It took me three years to

> >> get to this point

> >> of first  public offering so you know the science has been

> >> done! It has a TKW

> >> of just  329 grams and is very course-grained. I managed

> >> through eBay's site,

> >> so you  can find all of the available material and

> >> "Official" classification

> >> of NWA  4223 with the "Buy it Now" feature here:

> >>

> >> http://search.ebay.com/_W0QQsassZnaturesvault

> >>

> >> In addition to these  rare specimens, I have also listed

> >> these, most at

> >> reduced prices for the  holidays:

> >> NWA 1878 Mesosiderite (Fantastic etch!)

> >> NWA 1879  Mesosiderite

> >> NWA 2932 Mesosiderite

> >> NWA 869 L4-6 1kg Lot

> >> NWA 3118 CV3  100g Lot

> >> NWA 3151 Brachinite Thin Section

> >> NWA 4528 H5 500g  Lot

> >> Unclassified 2kg Lot

> >> Chergach Individual 92.1g (99%  crusted)

> >> Chergach Individual 64.1g (100% crusted)

> >> Gao Individual 154g  (from Haag Collection)

> >> Glorieta Pallasite Individual 13.7g

> >> Muonionalusta  End Cut 76.9g (starts at just 99 cents)

> >>

> >> Thank you for checking out what I  have to offer, I

> >> appreciate it!

> >>

> >> Best  regards,

> >> Greg

> >>

> >> ====================

> >> Greg Hupe

> >> The Hupe  Collection

> >> NaturesVault (eBay)

> >> gmhupe at htn.net

> >> www.LunarRock.com

> >> IMCA  3163

> >> ====================

> >> Click here for my current eBay auctions:

> >> http://search.ebay.com/_W0QQsassZnaturesvault

> >>

> >>

> >>

> >>

> >> ______________________________________________

> >> http://www.meteoritecentral.com

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> >>

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> >> 

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Prof. Zelimir Gabelica
Université de Haute Alsace
ENSCMu, Lab. GSEC,
3, Rue A. Werner,
F-68093 Mulhouse Cedex, France
Tel: +33 (0)3 89 33 68 94
Fax: +33 (0)3 89 33 68 15