[meteorite-list] Crust Micrographs NWA 2371 Crystal Structure! Check it out!

[STARSANDSCOPES at aol.com]

Hi list,  Tom Phillips here,  I have  some crust micrographs taken in 
reflected cross polarized light of a thick slice  of NWA 2371 an H4.  The 
heating/cooling caused the crust to crystallize  like nothing I have seen before.  

I haven't posted them to the  Gallery yet but it is well worth the time to 
email me and I will send some shots  in an email.

I would welcome any thoughts on this and if any one has  noticed it before.  
It really is cool! 

If this hits the list more  than once tonight, I forgot to send as text only 
so I sent it again.   Tom




In a message dated 3/23/2007 8:44:45 P.M. Mountain  Daylight Time, 
thebigcollector at msn.com writes:
Hello all,

Looking at  crust on various thin sections under the microscope it is very 
common to see  a mineral, such as an olvine crystal, on top of the crust.  It 
is not  as even as it appears to our naked eyes.  A few old photographs on my 
 
website illustrate this fairly  well...

http://www.meteoritearticles.com/colthinsectioncrust.html

Here  is the crust on an oriented  Gao-Guenie...

http://www.meteoritearticles.com/znpgaots.html

Clear  Skies,
Mark Bostick
www.meteoritearticles.com  




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