[meteorite-list] West - Blue-Silvery Markings

Tue Mar 10 22:55:31 EDT 2009

Hi Robert and list,  I just looked at the  post of the image on Michael's 
site (Thanks!!!).   

http://www.rocksfromspace.org/West-markings.html

SaU 001 has  a copper metallic sheen on some of the examples.  I wonder if it 
is the  same process at work?

I am convinced it is the result of metals internal  to the meteorite 
vaporized and depositing in the crust.  Very similar to  pottery glazes.  Different 
metals=different colors.  This metallic  glaze has stood up to hundreds of years 
in the Oman desert.  I think it is  in the glass of the crust (so to speak).

I have taken some heat on this  but I have tried to wear the glaze off by 
carrying small samples in my pocket  for extended periods.  It is in the glass 
that forms the crust and is not  part of the weathering process as has been 
suggested in SaU 001.  In fact  this metalic finish has been dismissed as just a 
weathering phenomenon.   

I am very excited to see a similar looking deposit on a fresh  fall.

Email me for some cool SaU 001 crust shoots but be advised, I am  not as good 
with macro as micro!

Tom Phillips

In a message  dated 3/10/2009 6:03:32 P.M. Mountain Daylight Time, 
meteoritefinder at yahoo.com  writes:

List,

I have been meaning to ask about the  "blue-silvery" markings on some of the 
West specimens we found. I see that  McCartney Taylor mentions it on his new 
web site. I showed the 60g meteorite  that it is best represented on from our 
finds to several "in-the-know-guys",  such as Mike Farmer and Robert Haag, who 
both have a seen a LOT more meteorites  than I have. Neither of them had ever 
seen anything like it before. That seems  to be a fairly significant 
statement.  Robert tossed around the idea that  it MIGHT be related to the copper 
content in this meteorite, and MIGHT be some  kind of "copper-related-melt-splash" 
????? ( Not trying to start any wild,  fantastic claims here at all. Like I 
said, this is just some musings out loud.  He also said it might be some type of 
troilite melt-splash, or something else  completely. But the point is, 
wouldn't most of us agree that if NO one (that  I've asked) has seen something like 
this before, it must be fairly uncommon  at
the least??? 

If anyone has ever seen anything like this  before or knows what it is, I 
would love to hear from you.

I don't  have a website, or a photo hosting site, but I would be happy to 
send a photo  that displays the markings directly to anyone who requests it.

Thanks,
Robert  Woolard

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