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RE: Microscope question
- To: "Meteorite List" <meteorite-list@meteoritecentral.com>
- Subject: RE: Microscope question
- From: "Jim Hurley" <hurleyj@arachnaut.org>
- Date: Tue, 21 Sep 1999 11:44:39 -0700
- Importance: Normal
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- Resent-Date: Tue, 21 Sep 1999 14:46:44 -0400 (EDT)
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Many of those microphotographs were taken of individual chondrules
I separated from a small specimen of Saratov L4.
Saratov is a crumbly stone and it is easy to separate the chondrules
by hand.
The 'DeathStar' chondrule, named after the obvious reference in Star Wars,
is a chondrule with a micro-impact crater on it. At least that's what it looks
like to me. It's also possible that the depression was made when the
chondrule cooled - it could have been next to another chondrule and the other
one made that dent. I don't think so, though, the hole looks very
much like a crater with a shattered rim.
The chondrule is sitting on a glass dish that was dusty from the crumbling
process - those look like stars. Beneath the glass dish is the black
antireflective plate of the microscope stage. Some shadows are cast onto that.
I probably should re-do that photo and focus a bit better. It looks
much better in real-life. It's big because I once used it for a desktop
background.
> -----Original Message-----
> From: Ginger Mayfield [mailto:chikadee@earthlink.net]
> Sent: Tuesday, September 21, 1999 01:56 AM
> To: Jim Hurley
> Cc: Meteorite List
> Subject: Re: Microscope question
>
>
> Jim,
>
> I very much enjoyed your photos but I have to ask what is the *deathstar*?????
>
> http://www.arachnaut.org/images/meteor/micro/deathstar.jpg
>
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