[meteorite-list] Meteorite Picture of the Day

[Paul Swartz via Meteorite-list]

Today's Meteorite Picture of the Day: Chelyabinsk

Contributed by: Steve R. Anold

http://www.tucsonmeteorites.com/mpodmain.asp?DD=03/12/2016
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[meteorite-list] Ad - Meteorite Micromounts - 42 witnessed falls, 15 hammer falls, 43 American localities, 44 petrologic types, 144+ worldwide localities

[Galactic Stone & Ironworks via Meteorite-list]

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Witnessed Falls :

Sep 02, 2015 : Saricicek (How) -
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Feb 15, 2013 : Chelyabinsk (LL5) -
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Feb 11, 2012 : Xining (L5) - Out of Stock.
May 22, 2012 : Katol (L6) -
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Aug 22, 2012 : Battle Mountain (L6) - Out of Stock.
Dec 16, 2012 : Mreira (L6) - Out of Stock.
Jul 18, 2011 : Tissint (Martian) -
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Mar 01, 2009 : Nkayi (L6) -
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Apr 06, 2008 : Berduc (L6) -
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Sep 12, 2008 : Sulagiri (LL6) -
http://www.galactic-stone.com/product/nkayi-zimbabwe-meteorite-2009-witnessed-fall-eaten-by-villagers-micromount
Dec 20, 2008 : Tamdakht (H5) -
http://www.galactic-stone.com/product/tamdakht--witnessed-fall-2008-morocco-meteorite-micromount
Jul 2/3 2007 : Chergach (H5) -
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Jul 06, 2007 : Cali (H/L4) -
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Sep 15, 2007 : Carancas (H4-5) -
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Oct 16, 2006 : Bassikounou (H5) -
http://www.galactic-stone.com/product/bassikounou-2006-witnessed-fall-h5-meteorite-mauritania-micromount
Oct 05, 2004 : Berthoud (Euc) -
http://www.galactic-stone.com/product/berthoud-rare-2004-eucrite-fell-in-a-colorado-horse-pen-micromount
Mar 26, 2003 : Park Forest (L5) -
http://www.galactic-stone.com/product/park-forest-famous-2003-chicago-hammer-meteorite-fall-display
Sep 23, 2003 : New Orleans (H5) -
http://www.galactic-stone.com/product/new-orleans-famous-new-orleans-house-smasher-micromount
Nov ??, 2003 : Ouadangou (L5) -
http://www.galactic-stone.com/product/ouadangou-rare-2003-witnessed-fall-recently-became-official-micromount
Feb 11, 2002 : Bensour (LL6) -
http://www.galactic-stone.com/product/bensour-ll6-morocco-meteorite-fall-february-2002-micromount
Jul 21, 2002 : Kilabo (LL6) -
http://www.galactic-stone.com/product/kilabo--nigerian-2002-witnessed-ll6-meteorite-fall-micromount
Jan 18, 2000 : Tagish Lake (C2-ung) -
http://www.galactic-stone.com/product/tagish-lake-canada-2000-witnessed-fall-exotic-c2-ung-comet-like
Aug 4/5 1998 : Zag (H3-6) -
http://www.galactic-stone.com/product/zag-h3-6-transitional-chondrite-meteorite-witnessed-fall
Jun 20, 1998 : Kunya Urgench (H5) - Out of Stock.
Jun 13, 1998 : Portales Valley (H6) -
http://www.galactic-stone.com/product/portales-valley-spectacular-1998-new-mexico-hammer-fall-micromount
Jun 07, 1998 : Indian Butte (H5) - Out of Stock.
Feb 15, 1997 : Juancheng (H5) -
http://www.galactic-stone.com/product/juancheng-mexico-hammer-fall-the-cook-pot-meteorite-micromount
Oct 09, 1992 : Peekskill (H6) -
http://www.galactic-stone.com/product/peekskill-display-famous-new-york-car-smasher-meteorite-fall
Apr 15, 1986 : Suizhou (L6) -
http://www.galactic-stone.com/product/suizhou-witnessed-fall-1986-hubei-china-micromount
Mar ??, 1986 : Oued el Hadjar (L3.8) - Out of Stock.
Dec 10, 1984 : Claxton (L6) -
http://www.galactic-stone.com/product/claxton-rare-georgia-mailbox-smasher-meteorite-display-box
Mar 14, 1984 : Jumapalo (L6) -
http://www.galactic-stone.com/product/jumapalo-1984-witnessed-fall-l6-meteorite-java-indonesia-micromount
Dec 24, 1965 : Barwell (L5) - Out of Stock.
Feb 08, 1961 : Allende (CV3) -
http://www.galactic-stone.com/product/allende-carbonaceous-cv3-witnessed-fall-mexico-1969
Oct ??, 1960 : Millbillillie (Euc) -
http://www.galactic-stone.com/product/millbillillie-1960-australia-witnessed-fall-eucrite-micromount
Mar 05, 1960 : Gao Guenie (H5) -
http://www.galactic-stone.com/product/gao-guenie--1960-witnessed-fall-from-burkina-faso-micromount
Oct 17, 1951 : Elenovka (L5) -
http://www.galactic-stone.com/product/elenovka-l5-chondrite-witnessed-fall-ukraine-1951-micromounts
Feb 15, 1948 : Norton County (Aub) -
http://www.galactic-stone.com/product/norton-county-historic-worlds-largest-aubrite-meteorite-micromount

Re: [meteorite-list] Meteorite reveals rare unstable element

[MexicoDoug via Meteorite-list]

Zelimir writes:

"I was mainly intrigued by the pink CAI but nobody could provide me some 
explanation. I don't claim the same phenomenon (presence of curium) is 
responsible of that color in my sample but now I can't help imagining that the 
curium hypothesis could possibly also explain the color of my CAI."

Zelimir,  Lucky specimen!  I had some mullings on this:

I would rule out that the presence of curium lent the pink color to your CAI.  
Right, the authors do not claim that curium is responsible for the pink color 
in their sample, or that there is presently any curium in the sample either.  I 
think  the amounts of curium are quite tiny to yield any color, they are 
dealing with.

Just a wild guess, but if your beautiful pink CAI happens to be like the one in 
the citation, the "CAI" likely has a matrix of Iron-rich spinel fine crystals 
which just happen to be tinged by Cr(III) in them according to 35 year old 
analyses on a pink CAI, or more descriptively, a MASHI, that was formed from/as 
an altered CAI possibly on an extremely old parent body that had volatiles, 
lots of salts and acid floating around.  Note the rich Cr2O3 assay of the 
interior here:
http://articles.adsabs.harvard.edu/full/1981LPI12...25A

An image I have is a radioactive heated proto-planet with nasty lakes and your 
pink CAI stuck festering and staining pink in a dirty, salty, pool on it until 
the day something smashed the protoplanet to little bits and only after that 
prehistory did Allende condense.  (I bet if you licked the inclusion it would 
taste like salt).  Whether the pool contained water I wonder, too.  For a nice 
spinel colored by Cr(III) look up the Timur "Ruby"... or click on this
https://en.wikipedia.org/wiki/Spinel#/media/File:Spinel2.jpg 

It was not clear for me where the samples were coming from in this paper.  It's 
fairly clear they are all Allende specimens, and going by the footnotes and 
guessing about the sample numbers, it looks like Chicago had two coarse grained 
CAIs that were extracted for the paper, and the rest of the samples were from 
the Fields Museum donations, where the researchers destructively analyzed 
pieces of the CAIs they extracted, looking for fine grained ones perhaps were 
reminiscent of the old "Pink Angel" an inclusion that was close to the heart of 
Jerry Wasserburg. 

IMO They would have been better off naming it "Curious Jerry" for Wasserburg, 
who helped open the Pandora's Box of CAI's and was a principal discoverer that 
radioactive aluminum provided early energy for the activities of forming early 
protoplanets along with explanations where the pre-sources of solar nebula 
material were.  This find of evidence of curium, IMO, is an extension of that 
in some ways and probably vindicates some of the speculation and scientific 
battles Wasserburg and colleagues dealt with after the Allende fall when using 
Allende, moon rocks and meteorites in general to figure out what created our 
local neighborhood  As for all the silly names, given that this is a non-FUN 
CAI that might be a MASHI, the only thing that is clear to me is that this is 
all the work of Lunatics ;) Anyway, I don't think Marie Curie's favorite color 
was pink in that day.  I picture her more pale green and beautifully glowing!

Blue skies & pink CAIs
Doug


-Original Message-
From: Zelimir Gabelica via Meteorite-list 
To: mineral 
Cc: Meteoritelist 
Sent: Wed, Mar 9, 2016 11:45 am
Subject: Re: [meteorite-list] Meteorite reveals rare unstable element

Hello Derek, ListVery exciting reading !For info, I have acquired in 2013 a 
14.7 g Allende fragment that also shows a nice 9.5x5 mm CAI exhibiting a neatly 
distinct pink color (and also a curious reddish-brown color on some of its 
(black) crust areas).I was mainly intrigued by the pink CAI but nobody could 
provide me some explanation. I don't claim the same phenomenon (presence of 
curium) is responsible of that color in my sample but now I can't help 
imagining that the curium hypothesis could possibly also explain the color of 
my CAI. Probably worth some further analysis ?Regards to all,Zelimir- Mail 
original - De: "mineral via Meteorite-list" 
 À: "Meteoritelist" 
 Envoyé: Mercredi 9 Mars 2016 15:15:28 
Objet: [meteorite-list] Meteorite reveals rare unstable element 
http://earthsky.org/space/meteorite-reveals-rare-unstable-element Thanks, 
Derek. __ Visit our Facebook page 
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http://www.meteorite-list-archives.com Meteorite-list mailing list 
Meteorite-list@meteoritecentral.com 
https://pairlist3.pair.net/mailman/listinfo/meteorite-list -- -- Zelimir 
GABELICA Professeur  Université de Haute-Alsace ENSCMu, Lab. GSEC 3, Rue Alfred 
Werner - F-68093 Mulhouse 

[meteorite-list] small square membrane boxes

[Francesco Moser via Meteorite-list]

Hello, 
I need some small square membrane boxes.
There are two different measures:
38*38*16mm
55*55*25mm

Like these:
http://www.cryspak.com/list-21.html

I need a shop in Europe for trouble with the custom!

Thanks a lot!

xx
Francesco


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