[meteorite-list] Question Regarding Lunar's

[Darryl Pitt]

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, <cdtucson at cox.net> <cdtucson at 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 <stanleygregr at 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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