Are there any sources for gem quality periodots fron pallasite meteorites?
with cut and pollished stones up to 5 carats? it would require cutting thick
slabs of pallasites rather than the thin slices currently available, then using
the larger clear pieces to be cut into ring quality gems.
From: Mike Hankey mike.han...@gmail.com
Happy Labor Day Everyone,
I've heard some people talk about how sometimes meteors can be big
balls of ice.
How common is this? Specifically what are the chances that the PA
fireball I'm looking for could have been an ice ball? That would
really suck.
or the impacts stopped the crystal growth of the irons, causing muionalusta,
gibeon and campos having the same or similar age yet different band widths
depending on when an impactor stopped the crystal growth of the widmanstattens.
cheers
Steve
--- On Mon, 9/7/09, E.P. Grondine
Hi all,
Our own Darren Garrison has won a photography contest on Panda's Thumb.
http://pandasthumb.org/archives/2009/09/photo-contest-w.html#more
To see the finalists, go here:
http://pandasthumb.org/archives/2009/08/photo-contest-v-1.html#more
Congrats Darren! Nice job!
Best regards,
http://www.rocksfromspace.org/September_8_2009.html
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Our own Darren Garrison has won a photography contest on Panda's Thumb.
Nice Photo...I didn't realize that hummingbirds were that aggressive to
other critters besides other hummingbirds. Interesting...
GeoZay
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http://www.meteoritecentral.com
Dear List Members,
Several excellent auctions are due to end this afternoon. Thousands of
dollars worth of material was loaded and started at just 99 cents. Be sure to
take a look as I cannot afford to give away meteorites much longer as most of
these have been selling below my costs
Hello Bob and list,
I'm not sure if there is any active debate but I believe there are
still issues. A good summary of the problems with this material and
pairings is documented here:
http://www4.nau.edu/meteorite/Meteorite/Al_Haggounia.html
Regards,
Phil
On Tue, Sep 8, 2009 at 10:31 AM, Bob
Nice photo, but Al-Hagg is an EL3 enstatite chondrite, not an aubrite. :)
On 9/8/09, spacerocks...@aol.com spacerocks...@aol.com wrote:
http://www.rocksfromspace.org/September_8_2009.html
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Meteorite-list mailing
Hi list.I am looking for a stone or iron meteorite,prefferably unclassified
that is oriented and with heavy flow lines.I am looking to spend around
$700.Please off list.
Steve R. Arnold, Chicago!!
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http://www.meteoritecentral.com
Hi Mike and all,
That was a fun picture today but one question -- I thought the El
Haggounia aubrite was classified as an EL3. Is there still debate on
this material?
Thanks,
Bob
On Tue, Sep 8, 2009 at 10:08 AM, spacerocks...@aol.com wrote:
http://www.rocksfromspace.org/September_8_2009.html
List,
I have a question about chrome.
What is the highest percentage of chrome found in iron meteorites? Thanks Carl
--
Carl or Debbie Esparza
IMCA 5829
Meteoritemax
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Sept. 8, 2009
Grey Hautaluoma/Ashley Edwards
Headquarters, Washington
202-358-0668/1756
grey.hautaluom...@nasa.gov, ashley.edward...@nasa.gov
Jonas Dino
Ames Research Center, Moffett Field, Calif.
650-604-5612
jonas.d...@nasa.gov
MEDIA ADVISORY: M09-171
NASA SELECTS TARGET CRATER FOR
Hi List
Check out my images of two stretch tektites found in the Philippine:
http://www.tektites.co.uk/stretch.html (half way down)
There is an interesting story:
Des Leong of www.tektiteinc.com showed me the 66.1g specimen and asked if I
thought it was a stretch tektite. I said 'no' as
Randy, far be it from me to put words in your fingers, but I recall in an
earlier (a year or two ago) post from you on lunar regolith breccias, you
mentioned that in a lunar breccia, the clasts are more or less randomly sized,
while in most terrestrial breccias, the clasts are mostly of
Predictions have been made of such doomsday scenarios. There's a good one in
the book Gaia by Lovelock that begins with some genetic engineering experiment
going wrong and it ends up stopping photosynthesis.
The predictions are that eventually the Earth would end up with an atmosphere
very
On Tue, 08 Sep 2009 15:39:31 -0500, you wrote:
sorted. There's a continuum from small to big. I think of a lunar
regolith of fragmental breccia as being fractal - it doesn't make any
difference what scale you're look at. It always looks the same.
Speaking of fractal details and the moon, I
--- On Mon, 9/7/09, Jeff Grossman jgross...@usgs.gov wrote:
Most of the metallic minerals in iron meteorites are described as
alloys in that they are composed of various metals combined together.
I understood the distinction was that the Fe Ni formed a chemical compound
not merely a mixture
test
_
Get back to school stuff for them and cashback for you.
http://www.bing.com/cashback?form=MSHYCBpubl=WLHMTAGcrea=TEXT_MSHYCB_BackToSchool_Cashback_BTSCashback_1x1
__
I guess once again as with CCDs my education is outdated. I see that any metal
compound or mixture can be called an alloy. OR it has come into such common use
the distinction between mixture and compound is obsolete when talking about
metals.
Elton
--- On Tue, 9/8/09, Mr EMan
I see that a new mineral came and went last decade and I don't recall a
discussion of it on the list. Course the list was may not have been around in
1995! It was found in Vaca Muerta. Fe3Ni. I also see that the IMA rejected it
as a new mineral. Passed along for your perusal from the
As the ravages of time rake through my memory...some is coming back to me. The
mineral Plessite is an intermediate mixture of both taenite and kamacite. It
may be the bulk mineral in iron meteorites. I need to find it it is also the
composition of the iron flecks in common chondrites of does
Hi all -
Theoretical physics question of the day:
Years ago I read of a stable Earth-Moon orbital path. Now the Earth outgasses,
so some of this would appear to go into this orbital path. Could water accrete
there in that path, and then return to Earth, or would the vacuum just tear any
Hello list,
I have a question.
I have a piece of Brenham, Ks. It has very slim metal dividers that seperate
the Olivine crystal pockets.
There are other Pallasites that have much thicker metal dividers with
smaller
Olivine pockets.
The questionwould the former be formed further from the
It is a statistical certainty that Apollo era urine is still in lunar and
Terran orbit Perhaps it has been freeze dried. Would make an interesting
micrometeorite.
Elton
--- On Tue, 9/8/09, E.P. Grondine epgrond...@yahoo.com wrote:
From: E.P. Grondine epgrond...@yahoo.com
Subject: Re:
Dear List Members,
Another week, and another set of 'Steal-of-A-Deal' auctions ending tomorrow
(Wednesday, September 9th). A slow start to bidding means great deals for
those who are willing to check 'em out!
Aside from the above mentioned deals, I also have listed the last four
Ocate, New
Hello Pete,
I'm not as well-versed in the science of such things as many on the
list, but I would point out that there are many multi-kg specimens of
Brenham that are composed entirely of iron. Other good examples of
similar features occurring in meteorites including, but not limited
to,
On Tue, 8 Sep 2009 20:28:39 -0700 (PDT), you wrote:
It is a statistical certainty that Apollo era urine is still in
lunar and Terran orbit Perhaps it has been freeze dried.
Freeze dried water?
Okay, mostly water. In an ugly bag.
__
All,
Pete's question re: pallasites reminds me of one I've been meaning to throw
out to the group for a while. I believe that, by definition, L6's come from
one parent body and L5's, say, come from another. It's clear why breccias
might simply be an association of the two. But I've seen cross
PS - Darren has been kind enough to send some great resources along off
list. I can't recall where the notion of separate parent bodies denoted by
alteration first hit my screen, but I'm rather certain it was here on the
list. Having previously assumed three parent bodies (H, L, and amphoterite)
Hey Guys,
I got this lead last week:
Mike, I was reading the Lancaster paper tonight and saw about the
meteorite-I think this clears something up for me- I am in New
Holland, Pa on the early morning of July 6th, I couldnt sleep and was
watching tv- all the sudden I heard a huge bang right
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