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

From: Mr EMan <mstreman53_at_meteoritecentral.com>
Date: Tue, 4 Aug 2009 00:23:36 -0700 (PDT)
Message-ID: <600584.29278.qm_at_web55201.mail.re4.yahoo.com>

--- On Mon, 8/3/09, Pekka Savolainen <nuuska at dlc.fi> wrote:
> To me the form of the crystal looks like typical
> plagioglace feldspar, (labradorite), (anorthosite + albite),
> /N//a/(/A//l//S//i/3/O/8)/C//a/(/A/12/S//i/208).

Agreed in principle-- Going by the semi-waxy luster, cleavage, and apparent crystal form this is certainly not a pyroxene and highly probable that it is a feldspar. How this came into being and came to be in this meteorite present some intriguing --probably rare conditions to explain it.

Thanks for presenting it Gary.

Elton
Received on Tue 04 Aug 2009 03:23:36 AM PDT