in part as a result of the absorptive qualities and absorption rates
of the different mineralogy.
there is also a difference between oxidation and staining....or
"tinting," the term i prefer for auction catalog descriptions ;-)
On Jan 6, 2010, at 2:30 PM, <cdtuc...@cox.net> <cdtuc...@cox.net> wrote:
Greg,
Interesting observation.
Recently, I asked the same question to Randy Korotev. As I recall he
said it was Earth oxidation.
I then looked at all of the pictures on his web site and noticed
that the only ones he shows with this red
color are the Oman examples. Most of them are listed as Dhofar but
Oman also includes your example in
question; shisr161 .
see pics at link;
http://meteorites.wustl.edu/lunar/moon_meteorites_list_alumina.htm
So, All do respect to Randy, to add to your question; why do only
Oman lunar's have the red color inside. Because in some of them the
red is only very deep inside
and not near the original crustal area. You would think if it was
weathering on Earth, it would be near the surface area and not only
deep inside as clearly is the case in some of the pics. ? Many
Meteorites from other finds do have the red oxidation on the crust
like Millbillillie but not exclusively on just in interior areas
like the Oman clan. So , again why is that?
Thanks Carl
--
Carl or Debbie Esparza
Meteoritemax
---- Greg Stanley <stanleygr...@hotmail.com> wrote:
List:
I have a question regarding Lunar meteorites. In many of the pics
on various websites I have noticed a reddish/brown color in the
meteorites. I figured that most would be more grayish and white.
Is the reddish color from terrestrial means? Does it oxidize after
landing? Or is this reddish color not related to oxidation at all
and is the actual color it would be on the moon? I would think
that there would be no oxidation on the moon or in space, due to
the lack of oxygen.
Shisr161 is an example.
http://www.meteoris.de/img/ncc-lun/Shisr161-2.884g.jpg
I can't get over how 'terrestrial' lunars look. Who knows... maybe
I've stepped on one without knowing it.
Greg S.
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