[meteorite-list] Interesting crystal in meteorite - what is it?

[Gary Fujihara]

Aloha,

In a suspected lodranite recently procured from Morocco, I noticed a  
peculiar large, iridescent crystal in the broken face of the  
meteorite.  I contacted some people on the metlist about this feature  
to get their thoughts, and Bernd Pauli has opined that the crystal is  
euhedral, iridescent and has the crystalline form of typical  
feldspars.  But I have never seen a plagioclase feldspar look like  
this.  Or is this some kind of iridescent olivine crystal?  Or ???

I am getting this specimen analyzed, but until then, I am hoping  
someone on the metlist has seen, and can identify this curious crystal.

http://astroday.net/Meteorites.html

Gary Fujihara
AstroDay Institute
105 Puhili Place, Hilo, HI 96720
(808) 640-9161, fujmon at mac.com
http://astroday.net