[meteorite-list] Chassigny Chondrules

From: Steve Schoner <steve_schoner_at_meteoritecentral.com>
Date: Thu Apr 22 10:21:10 2004
Message-ID: <20030728154602.23947.qmail_at_web12708.mail.yahoo.com>

--- mark ford <markf_at_ssl.gb.com> wrote:
>
>
>
> Hi,
>
> Does anyone know what the current thinking on the
> 'Chassigny Chondrules'
> is? - (as to what they actually are or how they
> formed?)
>
> I found this, but can anyone point me in the
> direction of any further
> information?
>
> http://www.geocities.com/~dweir/chassig1.htm
>
>
> Cheers
> Mark F.
>
>

Here is a link to a photomicrograph of my tiny thin
slice of Chassigny, about 2mm (which I bought several
years ago via Ebay from Steve Arnold).

http://www.geocities.com/meteorite_identification/chass2.jpg

(if you can't view this file, be sure to turn on your
cookies, as Geocities requires it, or log on at
another time if the traffic is too high at the time.)

The dark areas within the crystals are glass mentioned
in the article, and in these can be seen emerging
crystals formed in that glass. These tiny crystals
are very clear in direct viewing. I suppose that the
"chondurles" mentioned are the rounded olivine grains,
one of which is seen in this photo.

It was taken with my old $30 microscope and patent
pending viewer.

But thanks to Rob Riesner, I now have a much better
instrument, which I am learning to use, and it
provides much clearer images than my old $30
microscope. I will be able to provide much better
images once I learn how to use my digital camera setup
for this amazing microscope.

Steve Schoner.


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Received on Mon 28 Jul 2003 11:46:02 AM PDT