[meteorite-list] Martian Meteorite MIL 03346

From: Kashuba, Ontario, California <mary.kashuba_at_meteoritecentral.com>
Date: Tue Jul 20 18:21:03 2004
Message-ID: <000a01c46ea4$16be2af0$6401a8c0_at_VALUED2CAD4949>

Bernd and List,

Thank you.
List members might want to view my photos of an NWA 998 thin section I got
from Michael Blood.

http://www.johnkashuba.com/Ach_NWA_998_Nakhlite.html

John Kashuba
Ontario, California

----- Original Message -----
From: <bernd.pauli_at_paulinet.de>
To: <Meteorite-list_at_meteoritecentral.com>
Sent: Tuesday, July 20, 2004 12:28 PM
Subject: [meteorite-list] Martian Meteorite MIL 03346


> New Martian Meteorite Found In Antarctica (MIL 03346)

Not only is it a new martian meteorite but it is also the
first n a k h l i t e from the US Antarctic icefields !

There are two nakhlites from the Yamato icefields and they
are probably paired: Yamato 000593 and Yamato 000749.

Can MIL 03346 be paired with Y-000593 and Y-000749? Probably
not, because the Yamato nakhlites do contain some olivine as
an accessory mineral whereas "olivine was not observed" in
MIL 03346, which is unusual for nakhlites.

I am really glad I was able to acquire 0.61 grams of the NWA 998
nakhlite from Jim Strope some time ago. Some list members will
remember that he offered a NWA 998 combo (thin section + meteorite).
The thin section is an aesthetic feast for the eyes under crossed polars:

- long augite prisms showing simple twinning
- some augite crystals showing zoning
- some augite crystals having a striated pattern
- a few iron-rich olivine crystals with purple rim zoning (= poorer in iron)
- colors, colors, colors!

For those of you who can access the German Meteorite List (Yahoo List)
and who can open the photo files, click on "D?nnschliffe" (= thin sections)
and you will find my thin section photo of NWA 998, a stunning cascade
of colors!

Bernd

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Received on Tue 20 Jul 2004 05:54:10 PM PDT