[meteorite-list] Sutter's Mill request

From: lgarvie at cox.net <lgarvie_at_meteoritecentral.com>
Date: Tue, 26 Apr 2016 12:16:59 -0700
Message-ID: <20160426151659.95V2O.163048.imail_at_fed1rmwml303>

Dear Meteorite collectors,

I am in the process of working on the bulk mineralogy of Sutter?s Mill as determined by powder x-ray diffraction. I have run several samples now, including the pre-rain SM3, and found some interesting minerals. My big interest is in the clay mineralogy, the quantity and type in each sample I am arguing reflects degree of pre-terrestrial heating. I now have a relatively good dataset of samples (SM3,41,38,49,65,8,6,12,53), but would dearly like to run a few more. There seems to be some gaps in the data with regards to clay content and hence heating. I don?t know yet whether this gap reflects the fact that I have not looked at enough samples, or is real and is telling us that there are two groups of Sutter?s Mill - clay rich (mildly heated), and clay poor (heated to high temperature).

So, I am looking for small pieces of samples for my research. Ideally, I am looking for donations of small fragments - 100 mg would be perfect, though I can still work on samples in the 20 mg range.

If anyone has samples available, then please feel free to email me.

Thanks

Laurence

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Dr. Laurence A.J. Garvie

Chair, Nomenclature Committee
The Meteoritical Society

Curator
Center for Meteorite Studies

Research Professor
School of Earth and Space Exploration
Arizona State University
email: lgarvie at asu.edu
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Received on Tue 26 Apr 2016 03:16:59 PM PDT