[meteorite-list] Park Forest Chondrules

From: Steve Witt <stelor96_at_meteoritecentral.com>
Date: Thu Apr 22 10:25:45 2004
Message-ID: <20030527075824.41065.qmail_at_web9608.mail.yahoo.com>

Greg,

I purchased a new off brand microscope on e-Bay a few years agp for
around $260 and using used photographic filters, built my own cross
linear polarizer. It works well, however the MBC-10 that Michael
Blood offers on his website as well as Jim Tobin's polarizer are
definitely on my wish list.

Steve


--- Greg Redfern <gredfern_at_earthlink.net> wrote:
> Steve, Bernd. List,
>
> What microscope do you use to view meteoritic specimens? I am
> looking for
> recommendations for purchase.
>
> Thanks.
>
> All the best,
> Greg Redfern
> 2003 NASA Solar System Ambassador
> http://www.jpl.nasa.gov/ambassador/
> IMCA #5781
> www.meteoritecollectors.org
> Meteoritical Society
> www.meteoriticalsociety.org
>
>
>
> -----Original Message-----
> From: meteorite-list-admin_at_meteoritecentral.com
> [mailto:meteorite-list-admin_at_meteoritecentral.com]On Behalf Of
> Steve
> Witt
> Sent: Sunday, May 25, 2003 6:07 PM
> To: bernd.pauli_at_paulinet.de
> Cc: Meteorite-List
> Subject: Re: [meteorite-list] Park Forest Chondrules
>
>
> Bernd,
>
> I just spent a while at the microscope, (first time since March 26,
> shame on me), and I'm seeing exactly what you're talking about. The
> vast majority, (app 90%+) in my slices anyway, have the same
> orientation. Another thing I'm seeing that's really neat is that
> the
> bars in the barred olivine chondrules seem not to be running in a
> straight line as I'm used to seeing, but rather have a swirl, again
> following the shock orientation! Gotta get more time at the 'scope.
> Hope to post a link to some images later.
>
> thanx,
> Steve
>
>
> --- bernd.pauli_at_paulinet.de wrote:
> > Hello Listees,
> >
> > Although the entry in Met.Bull. 87, 2003 says that there are no
> > visible chondrules in hand sample, one of my specimens from
> > Steve Witt does have a few easily discernible chondrules. Now,
> > assuming they are really chondrules, the astonishing thing about
> > them is that they are all slightly oval and seem to show a
> > preferred
> > orientation (as if they were "going with the flow" of the dark
> > parts
> > of the matrix material). Any comments?
> >
> > Best wishes,
> >
> > Bernd
> >
> >
> > ______________________________________________
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>
>
>
> =====
> Steve Witt
> IMCA #9020
>
> http://www.meteoritecollectors.org
>
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=====
Steve Witt
IMCA #9020

http://www.meteoritecollectors.org

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Received on Tue 27 May 2003 03:58:24 AM PDT