[meteorite-list] Why are Esquel slices Transparent Blue?

From: JKGwilliam <h3chondrite_at_meteoritecentral.com>
Date: Wed Feb 15 21:21:33 2006
Message-ID: <6.2.1.2.2.20060215191845.02bfb8a0_at_pop.west.cox.net>

If you take the same picture in a studio environment ( with correct
temperature lighting) with a white diffuser above the pallasite slice, the
reflective surface appears white or light grey. Now we all know that
polished iron isn't white, but it is more acceptable to the human eye that
a reflected blue sky.
Take a look at this slice of Brahin
http://www.meteoriteimpact.com/brahin2.htm
Best,

John Gwilliam


At 06:30 PM 2/15/2006, Gary K. Foote wrote:
>Thank you Ron,
>
>It didn't make sense to me, but every sample I saw photographed was the
>same blue matrix
>color. Of _course_ one would hold it to the sun to show off the olivines
>and pyroxenes,
>thus reflecting the back sky in the iron.
>
>Doh!
>
>Gary
>
>On 15 Feb 2006 at 17:17, Ron Baalke wrote:
>
> > >
> > >
> http://www.arizonaskiesmeteorites.com/AZ_Skies_Links/Stony_Irons/index.html
> > >
> >
> > I thought you were referring to the color of the olivine crystals, but the
> > crystals in this photo are the typical red/orange color you'd expect
> for any
> > pallasite. The blue color is being reflected by the polished metal
> portion
> > of the pallasite, and the source of the blue color could be something as
> > simple as the sky, or a blue wall in the room. The meteorite itself
> > it not blue.
> >
> > Ron Baalke
> > ______________________________________________
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>
>
>
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Received on Wed 15 Feb 2006 09:24:38 PM PST