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

[GeoZay 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%).  

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