[meteorite-list] Blue crystals aggregates of Halite in Zag specimens

[PAOLO CONTE via Meteorite-list]

Hello Listers,


For my educational collection, I'm looking for a slice (or endcut) of Zag
with blue halite inclusions visible at naked eye.


Sincerely, I already had tried to ask to some Listers, but the answer that
I always have received is the same: the halite crystals aren’t visible at
naked eye.


This is true for single crystals, but the AGGREGATES of these crystals
sometimes are visible without microscope, since they also can achieve an
extension of one centimeter, according A. Rubin, M. Zolensky and R.
Bodnar, *The
halite-bearing Zag and Monahans meteorite breccias*, Meteoritics and
Planetary Sciences, 37 (2002), pp. 125-141. This is the link to the article:

http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?2002M%26PS...37..125Rdata_type=PDF_HIGHwhole_paper=YEStype=PRINTERfiletype=.pdfghhhg


At page 131, the Authors write: "*Most grains are a few hundred micrometers
in sizes, although aggregates can range up to 1 cm.*"


I have found in Internet only few images of no-microscopic clusters of
halite in the Zag meteorite, but the one that seems to represent at the
best what I’m looking for is a picture published just at the end of this
page here:

http://www.meteoritestudies.com/protected_ZAG.HTM


In fact, the blue coloration would make these clusters more visible, even
if Zolensky et al. claim that these aggregates can be transparent or opaque
also. But for my educational collection I'm looking for blue aggregates
because I think it’s very difficult to show to the students transparent or
opaque halite: the blue color has - probably - a better contrast.


Perhaps, these aggregates visible at naked eye (not only blue, but
transparent or opaque also) are really rare, but if the collectors claim to
never saw them, I think could be another reason: if these meteorites are
cutted with water, the water dissolves sodium chloride.  Am I wrong? What
do you think about? If my hypothesis were true, it would be useless to look
for. Isn'it?


However, do you know someone who can help me to find a Zag specimen with a
blue halite inclusion?


Thanks to All for your kind attention and I'm sorry for my bad English.


Best regards from Rome.


Paolo Conte (IMCA #6037)
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Re: [meteorite-list] Collections - (was Possible meteorite trades)

[Natural History Laboratory via Meteorite-list]

Aloha Everyone,

Aside from collecting and selling meteorites, I also collect error coins and 
currency—the mistakes that the U.S. mint makes and doesn’t want you to have.  I 
guess you could say I have an eye/preference for rare and unusual things.  ;)



Matthew Martin, M.Ed.
Natural History Laboratory
P.O. Box 164, Kaaawa, HI 96730
www.naturalhistorylab.com 
i...@naturalhistorylab.com 




> On Jul 6, 2016, at 8:44 AM, meteorite-list-requ...@meteoritecentral.com wrote:
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> Today's Topics:
> 
>   1. Meteorite Picture of the Day (valpar...@aol.com)
>   2. Re: Collections - (was Possible meteorite trades) (Anita)
>   3. Re: Possible meteorite trades (Edward Tindell)
>   4. Re: Collections - (was Possible meteorite trades) (Anne Black)
>   5. Re: Collections - (was Possible meteorite trades) (Dennis Miller)
>   6. Collections (Doug Achim)
> 
> 
> --
> 
> Message: 1
> Date: Wed, 6 Jul 2016 00:00:11 -0700
> From: 
> To: 
> Subject: [meteorite-list] Meteorite Picture of the Day
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> 
> Today's Meteorite Picture of the Day: Gold Basin
> 
> Contributed by: Twink Monrad
> 
> http://www.tucsonmeteorites.com/mpodmain.asp?DD=07/06/2016
> 
> 
> --
> 
> Message: 2
> Date: Wed, 6 Jul 2016 08:13:14 -0400
> From: Anita 
> To: Graham Ensor via Meteorite-list
>   ,  Anne Black 
> Cc: meteorite list ,  Mendy
>   Ouzillou 
> Subject: Re: [meteorite-list] Collections - (was Possible meteorite
>   trades)
> Message-ID: <234830.97800...@smtp217.mail.ne1.yahoo.com>
> Content-Type: text/plain; charset="utf-8"
> 
> I once heard that if you have 3 of anything, it?s a collection.
> Anita
> 
> Sent from Mail for Windows 10
> 
> From: Graham Ensor via Meteorite-list
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> Message: 3
> Date: Wed, 6 Jul 2016 00:03:24 -0500
> From: "Edward Tindell" 
> To: 
> Subject: Re: [meteorite-list] Possible meteorite trades
> Message-ID: <001401d1d743$b9be4450$2d3accf0$@sprynet.com>
> Content-Type: text/plain; charset="utf-8"
> 
> Hey List ?
> 
> 
> 
>I?ve been lurking here for several years just learning about 
> meteorites and start collecting them.
> 
>I also collect rocks, minerals, and fossils. My current main 
> interests is agates and radioactive minerals.
> 
>I also collect books, mainly science fiction and math and physics.
> 
>I have about 25 hobbies and I?m trying to pair it down to just 
> five ? rock hounding, reading, rocketry, writing, and robots ? I cut the list 
> down to those that start with an ?R? sound.
> 
>I don?t collect marbles.
> 
> 
> 
> Thanks,
> 
> 
> 
> Ed Tindell
> 
> -
> From: Meteorite-list [mailto:meteorite-list-boun...@meteoritecentral.com] On
> Behalf Of Edwin Thompson via Meteorite-list
> Sent: Monday, July 4, 2016 12:02 AM
> To: meteorite-list@meteoritecentral.com
> Subject: [meteorite-list] Possible meteorite trades
> 
> Hello to all list members,
> I am reaching out to the farthest corners of the known world to appeal to
> any and all collectors.
> Having dealt in and collected meteorites, tektites and related books since
> I was just a kid, collecting all kinds of rocks which included a few
> cherished meteorites as early as the age of six, life has been blessed with
> lots of treasured finds. By the age of nine my parents allowed me to go off
> on summer long geology exploring science camp trips with older kids. For
> three years this was how I spent my summers, digging in fossil beds and
> agate beds all across the Northwest, areas that have been closed to this
> sort of activity since the mid to late sixties. At age seven I joined the
> Oregon 

[meteorite-list] Why do we collect anything?

[Kevin Kichinka via Meteorite-list]

Anne Black wondered if "We need a proper definition of what constitutes a
collection? (Is it) stuff properly curated and catalogued (or) stuff picked
up here and there?"

Col-lect- v 1.To bring together in a group; gather; assemble. 2. To
accumulate as a hobby or for study.

I found insight re Anne's question on p3 of a book titled 'The Art of
Collecting Meteorites'. The author quotes Harvey Nininger who said, "There
is hardly an object under the sun, made either by man or nature that you
cannot sell today if you look around for a buyer."

Then we learn that research anthropologist Margie Akin called collecting a
universal impulse deeply rooted in evolutionary biology.  "Comparing,
categorizing and collecting helped people survive."

She said that noticing differences in rocks and mushrooms gave early people
an evolutionary advantage when it came to making tools or looking for food.

Akin identified three ways to evaluate collections:

Sense of completeness (although what's complete to one person may lack
totality to another)

Level of formality (the state of perfection of each object)

Intensity (the amount of time spent searching for and researching the
collection)

The guy who wrote this book way back early in the 21st century concluded,
"Perhaps the 'meteorite-collecting impulse' should be considered a
cutting-edge of evolution. Darwin would be intrigued."

Or maybe not.

Typed with one finger on my Samsung J7 here on a mountaintop in Costa Rica
while butterflies the size of a 'Ruddy Treerunner' fly by creating a breeze
that will ripple around a world near you.

Kevin Kichinka
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[meteorite-list] Meteorite Picture of the Day

[Paul Swartz via Meteorite-list]

Today's Meteorite Picture of the Day: NWA 7484

Contributed by: Fabrice Demoulins

http://www.tucsonmeteorites.com/mpodmain.asp?DD=07/07/2016
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