[meteorite-list] Mystery unclassified stone meteorite - what is it?

From: Galactic Stone & Ironworks <meteoritemike_at_meteoritecentral.com>
Date: Fri, 26 Feb 2010 18:50:45 -0500
Message-ID: <e51421551002261550n3c8d2dfdnd56fcbc56a9417e_at_mail.gmail.com>

Hi Greg and List,

Here are two more photos showing the matrix with less glare. The
spots that look white in the photo are the metal flecks. I looked at
it with the 10x loupe and under a top-lit microscope at about 100x.
The flecks are definitely metal. Now that Jason mentions it, it does
bear a passing resemblence to Bison. I wish this stone was bigger, it
was only about 18 grams before I cut it. But I do have a couple of
nice looking (but small) endcuts and slices of it. It looks better
unpolished.

http://i268.photobucket.com/albums/jj24/Meteoritethrower/Meteorites/breccia-dual/breccia-matrix-fleck.jpg

http://i268.photobucket.com/albums/jj24/Meteoritethrower/Meteorites/breccia-dual/breccia-matrix-fleck-2.jpg

I meant to comment on your previous post about screening uNWA for
promising stones - thanks for the tips. I tend to work under the same
lighting in my work area and I use the same loupe and microscope setup
every time. I obviously don't have your experienced eye, but after
looking through many many hundreds (probably thousands) of small
non-descript stones, I am starting to develop a sense for what is
unusual. I'd put such small stones into a cigar box and after a
couple of years, I had a large number of them. When I finally bought
the saw, I started cutting them open. There was a lot of duds and
boring ones that looked better on the outside than the inside. But
there was also a few pleasant surprises - one possible achondrite,
this little breccia, an LL3.6 recently classified, and a couple more
promising (but small) candidates. Unfortunately, my best candidates
are also some of my smallest, so most of them really aren't worth the
trouble and expense of classifying - unless they turn out to be
planetaries, which I haven't been that lucky yet.

Best regards,

MikeG



On 2/26/10, Greg Hupe <gmhupe at htn.net> wrote:
> Hey MikeG,
>
> Do you have a photo of the inside matrix without the glare to show metal
> flakes?
>
> 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: "Galactic Stone & Ironworks" <meteoritemike at gmail.com>
> To: "Meteorite List" <meteorite-list at meteoritecentral.com>
> Sent: Friday, February 26, 2010 6:12 PM
> Subject: [meteorite-list] Mystery unclassified stone meteorite - what is it?
>
>
>> Hi Listees!
>>
>> I have this oddball meteorite in my cabinet that I have had for a long
>> time. I liked the way the outside looked, so I kept it. When I
>> finally bought I saw, I cut this specimen open and was pleasantly
>> surprised. It's a real oddball - perhaps a breccia of some type. The
>> first photo doesn't show it well, but there is metal fleck present.
>> Has anyone ever seen a specimen like this? Can anyone take an
>> educated guess as to what it might be?
>>
>> http://i268.photobucket.com/albums/jj24/Meteoritethrower/Meteorites/breccia-dual/breccia-2.jpg
>>
>> The outside of the stone -
>>
>> http://i268.photobucket.com/albums/jj24/Meteoritethrower/Meteorites/breccia-dual/breccia-outside.jpg
>>
>> I cut a small slice and polished it. The brecciated features faded
>> into the matrix and became very hard to see, but it made the sparse
>> metal fleck easier to see when the specimen is tilted the right way,
>> in this last photo -
>>
>> http://i268.photobucket.com/albums/jj24/Meteoritethrower/Meteorites/breccia-dual/breccia-iron.jpg
>>
>> Best regards,
>>
>> MikeG
>>
>> --
>> ------------------------------------------------------------
>> Mike Gilmer - Galactic Stone & Ironworks Meteorites
>> http://www.galactic-stone.com
>> http://www.facebook.com/galacticstone
>> ------------------------------------------------------------
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>
>
>

-- 
------------------------------------------------------------
Mike Gilmer - Galactic Stone & Ironworks Meteorites
http://www.galactic-stone.com
http://www.facebook.com/galacticstone
------------------------------------------------------------

Received on Fri 26 Feb 2010 06:50:45 PM PST