[meteorite-list] Wierd Meteorite Wrong Question?

Randy Korotev korotev at wustl.edu
Mon Apr 6 14:20:23 EDT 2009


Adam:

It has some resemblance to a hematite concretion:

http://meteorites.wustl.edu/id/concretions.htm

The color is right, but the texture is not.

Do a streak test:

http://meteorites.wustl.edu/id/streak.htm

Randy



At 12:14 06-04-09 Monday, you wrote:

>Dear List Members,
>
>We went on a Mojave Desert hunt this weekend where I found this 
>weird stone.  My questions is, does anybody have a clue to what type 
>of rock this may be?
>
>The reason I am asking the list is that several hunters have 
>thousands of hours in the Mojave whereas I only have a couple of 
>hundred and they may have seen something like it before. It is very 
>dense, has surface contraction cracks and is not attracted to a 
>powerful magnet at all.  It does look like a crust but not like 
>anything I have ever seen before.  I have never observed a gray 
>crust on a meteorite is what is convincing me that it is 
>terrestrial. I have never seen surface contraction cracks on a 
>terrestrial rock that did not penetrate the whole stone.  We must 
>have hiked 20 miles and I did not come across anything similar.
>
>We thought it was a meteorite when we first saw it in situ but now 
>are not convinced. I do not want to cut it if it is not a meteorite 
>because it would be one of the best wrongs I have ever seen. On the 
>other hand, if there is any chance whatsoever that it could be the 
>first North American Lunar, I would cut it in a heartbeat. Maybe, I 
>am just dreaming but I am convinced that within the next 10 years, 
>some lucky hunter will find one.
>
>Images of the stone:
>
>Image 1
>http://themeteoritesite.com/Achondrite-1.jpg
>
>Image 2
>http://themeteoritesite.com/Achondrite-2.jpg
>
>Any input would be greatly appreciated.
>
>Best Regards,
>
>Adam
>
>
>
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