[meteorite-list] Electric metallic blue inclusion inEnsisheim(the photo)

[Jason Utas]

Hello Phil, All,
I'm pretty sure Jeff is right on this one - I found a similar
inclusion in a piece of Tamdakht recently, and upon inspection with a
microscope, it became apparent that the bright blue inclusion I'd seen
was merely an opaque and iridescent film on the surface of a troilite
inclusion.  As has been noted, a similar phenomenon occurs with
"peacock ore," and on many other metallic minerals as well.  It's some
sort of a byproduct of oxidation on the surface of the inclusion.
Regards,
Jason

On Tue, Mar 16, 2010 at 5:18 PM, Phil Whitmer <prairiecactus at rtcol.com> wrote:
> Wasn't there a thread recently about labradorite in meteorites?  Could it be
> the the result of shocked metamorphism of plagioclase feldspar?  Or maybe
> it's ringwoodite?  Looks pretty cool whatever it is.
>
> Phil Whitmer
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