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

From: Martin Horejsi <accretiondesk_at_meteoritecentral.com>
Date: Wed Feb 15 20:24:34 2006
Message-ID: <9c2f96d20602151724g409c6085w68bf2a57af734c71_at_mail.gmail.com>

I suspect the finish level (ie polishing grit size) may cause some
wavelengths of light to be reflected better than others. Perhaps the
blue area wavelengths are reflected more more than other colors. Maybe
a really coarse finish might cause it to look more green or even red?
Just a guess.

In some translucent objects like icebergs, the blue wavelength is on
of the few that bounces around in the berg before exiting thus they
look blue. Where as the red etc. waves are abosorbed.



On 2/15/06, Ron Baalke <baalke_at_zagami.jpl.nasa.gov> 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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Received on Wed 15 Feb 2006 08:24:20 PM PST

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