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Post by mohs on Jun 15, 2010 16:07:32 GMT -5
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Post by jakesrocks on Jun 15, 2010 17:07:13 GMT -5
Possible stony meteorite. The left side in the pic appears to be smooth, as if it were melted. The rest looks like it broke apart on impact. If it is a meteorite, there should be more pieces near where that was found. It would be worth taking that to a college to have someone in their geology dept. take a look at it. It would also be worth having a look around for fragments. Don
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Post by mohs on Jun 15, 2010 21:13:52 GMT -5
Thanks Don !
I messed up with my exclusive magnetic theory Did some reading Only a small percentage of meteors found are of iron/nickel Vast majority are of the stony type or combination of stone/metal
Excellent observation too Don, about the one side looking melted
The person told me they found it and that there was indentation in the ground I immediately asked where & if we could go there But then they became somewhat vague (seems like it was a few years back and in Arizona)
Hope my neighbor throws it back at me :help: Ed
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Post by jakesrocks on Jun 15, 2010 22:09:26 GMT -5
Looks like a fair sized chunk. If that is a meteorite, it would be worth a bundle of cash. If I had it, I could see a new 36" saw and a big sphere machine in the future. Don
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Post by mohs on Jun 16, 2010 0:25:17 GMT -5
Which raises an interesting question How can a stony meteor be identified? Especially if its been removed from its place of origin? which obviously tells much
Like you said Don only a geologist with lots of specific knowledge would know for sure, I suppose
anyway thanks for the response! I’m bringing the picture down it really wasn’t mine to publicized :nono: Ed
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,687
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Post by Fossilman on Jun 16, 2010 8:52:42 GMT -5
They are also heavy for their size..........
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baojiazhi
starting to shine!
Member since October 2008
Posts: 40
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Post by baojiazhi on Jun 17, 2010 10:55:50 GMT -5
There is a good book called Find a falling star by Nininger that has a good description of stony meteorites
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Post by mohs on Jun 17, 2010 15:36:14 GMT -5
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Post by Hard Rock Cafe on Jun 22, 2010 12:54:53 GMT -5
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Post by mohs on Jun 23, 2010 11:01:43 GMT -5
Man that is an informative site, Chuck !
--shows examples of fusion crust, compares rocks that might be meteors, & learn lots about terrestrial rocks, too --
you come up with some great rock links!
Ed
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Post by Hard Rock Cafe on Jun 23, 2010 13:10:41 GMT -5
Thanks, Ed! Glad you enjoyed it!
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Post by mohs on Jun 26, 2010 13:15:21 GMT -5
After all the fine links, discussions and curiosity I went to my neighbors for a closer inspection. Geesh! The person pulled out a file and tried to scrape some of that rock. The file barely touched it! Leaving only a glassy type of finish on the rock. So its harder than a file. We had a paper underneath & collected some of the filing material. We took a magnet to that and the filings adhered! Well was it just the abrading from the file? So we need a more inventive way to grind some of this rock & see if there is a metal content. Dremel tool?
But wait! We once again tried the magnet to this rock. By golly! There is a distinctive magnetic pull! This rock is full of a low iron content. Does it contain nickel? Does it or did it have a fusion crust? Is it a meteor? Hopefully this afternoon, after further inspection, I’ll have more answers and less questions.
Plus the neighbor gave me the O.K. to post the pic. Ed
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Post by mohs on Jun 26, 2010 22:12:58 GMT -5
My conclusion is that this rock is NOT a meteor. But is DAMN close. The only reason I have to base that on is lack of a fusion crust. And it may be there! I left my neighbor with the name of a person at the Az. Mining & Mineral Museum if they want to pursue it further. Hope they do! The other side of this incredible rock! My best guess is that it some sort of industrial slag. What else would contain metal & draw a magnet? Ed
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