[meteorite-list] Tom's microvision pics of the NWA 4901 ungrouped achondrite

From: bernd.pauli at paulinet.de <bernd.pauli_at_meteoritecentral.com>
Date: 06 Feb 2009 19:19:22 UT
Message-ID: <DIIE.000000A7000038AA_at_paulinet.de>

Tom wrote:

"This months article is on NWA 4901 Ungrouped Achondrite.
  The images are real cool! If you haven't gone there yet, please
  take a look!"

http://www.meteorite-times.com/meteorite_frame.htm


Hi Tom,

Thanks a lot for sharing with us!

You just gotta love those beautifully striated pigeonites and for those
curious minds who want to know: These striations are exsolved augite
lamellae.

Those small whitish crystals in the fully cross polarized micrograph, that's
probably recrystallized plagioclase. That large white crystal at center looks
like an enstatite (orthopyroxene) crystal and those opaque "blebs" in the
last but one micrograph, well, not sure, but that could be chromites (FeCr2O4).

Best from Germany,

Bernd
Received on Fri 06 Feb 2009 02:19:22 PM PST