[meteorite-list] Irons DON'T form Fusion Crust's - yes they DO

[Mark]

actually, glassy is the same in both and refers to the surface as it appears 
to the eye
----- Original Message ----- 
From: "Darren Garrison" <cynapse at charter.net>
To: "Matthias Bärmann" <majbaermann at web.de>
Cc: <meteorite-list at meteoritecentral.com>
Sent: Sunday, January 07, 2007 2:26 PM
Subject: Re: [meteorite-list] Irons DON'T form Fusion Crust's - yes they DO


> On Sun, 7 Jan 2007 20:17:25 +0100, you wrote:
>
>>But it doesn't hit the point regarding meteorites. "Glassy" evokes the
>>impression of something shiny, very smooth, mirror-like. But as we all now
>
> But the "laymen" use of the term isn't the scientific one.  "Glassy" means
> something that cooled quickly enough that it didn't have time to 
> crystalize and
> is instead, on the atomic level, an amorphous mess.
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