[meteorite-list] What is Nickel content in Dronino meteorite?

From: GeoZay at aol.com <GeoZay_at_meteoritecentral.com>
Date: Sun, 19 Apr 2009 10:31:10 EDT
Message-ID: <d21.4d8b819b.371c8fae_at_aol.com>

Thanks for your response Piper. I read those sites you listed and am still
a little confused. Based on what you posted below, if I had a chunk of
Dronino in my hand, I could say it has a Nickel content of either 98.1%, 10.8%
or 9.8%...I guess which one is dependent upon what part of the sample I'm
referring to. So if I refer just to the Nickel content in the troilite its'
about 98.1%. And the Nickel content in the rest of the Dronino is 9.8%,
But combined it comes out to 10.8%. Is my understanding correct?
GeoZay


Chemistry : A bulk Dronino sample analyzed by
INAA in UCLA contains: Ni 98.1, Co 5.54 (mg/g),
Cr 37, Cu 32, Ga <0.3, As 3.52, W 0.38, Ir 1.68, Au
0.284 (ppm). The average of EMP analyses of the
metal is 10.8 wt% Ni. The higher Ni concentration
relative to the INAA data can be explained by the
presence of troilite in the bulk sample.


Dronino has about 10 vol% troilite, enough to significantly skew the bulk
nickel content (9.8%) relative to that in the metal (10.8%).

**************A Good Credit Score is 700 or Above. See yours in just 2 easy
steps!
(http://pr.atwola.com/promoclk/100126575x1220814852x1201410738/aol?redir=http:%2F%2Fwww.freecreditreport.com%2Fpm%2Fdefault.aspx%3Fsc%3D668072%26
hmpgID%3D62%26bcd%3DAprilfooter419NO62)
Received on Sun 19 Apr 2009 10:31:10 AM PDT