[meteorite-list] Interesting crystal in meteorite - what is it?

From: Greg Stanley <stanleygregr_at_meteoritecentral.com>
Date: Mon, 3 Aug 2009 15:45:41 -0700
Message-ID: <SNT117-W20684D469A77AF3858D1A9D20F0_at_phx.gbl>

Gary:

That is an amazing specimen. My first thought would be a plagioclase, but I noticed in the video that at one angle it looked greenish; perhaps some kind of orthopyroxene that is exhibiting iridescence.

Please let us know when you get the test results.

Greg S.

----------------------------------------
> From: fujmon at mac.com
> To: meteorite-list at meteoritecentral.com
> Date: Mon, 3 Aug 2009 11:50:32 -1000
> Subject: [meteorite-list] Interesting crystal in meteorite - what is it?
>
> Aloha,
>
> In a suspected lodranite recently procured from Morocco, I noticed a
> peculiar large, iridescent crystal in the broken face of the
> meteorite. I contacted some people on the metlist about this feature
> to get their thoughts, and Bernd Pauli has opined that the crystal is
> euhedral, iridescent and has the crystalline form of typical
> feldspars. But I have never seen a plagioclase feldspar look like
> this. Or is this some kind of iridescent olivine crystal? Or ???
>
> I am getting this specimen analyzed, but until then, I am hoping
> someone on the metlist has seen, and can identify this curious crystal.
>
> http://astroday.net/Meteorites.html
>
> Gary Fujihara
> AstroDay Institute
> 105 Puhili Place, Hilo, HI 96720
> (808) 640-9161, fujmon at mac.com
> http://astroday.net
>
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Received on Mon 03 Aug 2009 06:45:41 PM PDT