[meteorite-list] Silver stuff on the West?

[John Gwilliam]

Here's an idea about the "silver" blotches on some of the West 
meteorites.  Could it be pure nickel?  I don't know if it's possible 
for metallic particles in meteorites to consist of mostly 
nickel.  Are all iron/nickel blebs a homogeneous mix of the two 
metals?  The color of this "silver" blotching looks a lot like matte 
nickel plating that is often found on firearms and some plumbing fixtures.

Just a thought.

Best,

John

At 10:19 PM 3/19/2009, McCartney Taylor wrote:
>I have found another specimen with a pronounced silver 'line'
>http://outofabluesky.com/images/stories/stoneymeteorites/west15-1.jpg
>
>I really don't know what to make of it. In this new piece, its like 
>its a silver blob that melted and oozed out of the tiny gash in the 
>stone. I'm disinclined now to a post fall chemical reaction.  Do 
>take note of the oxidation effect the rain had on the stone.
>
>There is another specimen with silver 'blotches' on this page, the 
>29.5g piece.
>http://outofabluesky.com/index.php?option=com_jportfolio&cat=4&project=46&Itemid=58
>
>Any good theories out there?
>
>-mt
>
>
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John Gwilliam

Too many people were born on third base
and go through life thinking they hit a triple.