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

[Gary K. Foote]

That is one beautiful slice of Brahin.

Gary

On 15 Feb 2006 at 19:24, JKGwilliam wrote:

> 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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