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Let's See Some Meteorites!

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There's not a lot of activity on the meteorite forum, so I thought I'd start a new thread to hopefully jump-start things. It's an invitation for forum members to post pics and/or stories of theirs or others meteorite finds.

When I'm not hunting gold, I'm chasing meteorites. There's nothing quite like finding a rock that is literally out of this world.

For meteorites that I have had classified, I've included links to their entries in the Meteoritical Society's catalog of officially recognized meteorites. They are cold finds; for those not familiar with the terminology, a cold find is newly discovered meteorite that is not part of any known fall or strewn field. So enjoy, and lets see some meteorites!



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I'll have more to share later...

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Another cold find from northern Nevada. I was detecting for gold nuggets with my GPX 5000 along a narrow wash that had lots of exposed bedrock. Upon hearing a moderate signal, I looked down and instantly recognized the small meteorite; you'll notice in the pic how it stands out from the surrounding soil and rocks. I'll never have this one classified because it's a complete individual; cutting it would ruin it. 


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nice chrondrites, Lunk...many gold hunters would toss those away.

this is my only Oz meteorite found near Halls Creek and on loan at the Bathurst Observatory, Australia.


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DSC00768 013.JPG

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Fred and Lunk,

  Very nice pieces, and finds. I have quite a collection, with a cold find. My largest find is a 17 pound found in Gold Butte, Nevada.



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Great find, Fred!  Those fine flow features are fantastic...looks like it was oriented. Thanks for sharing. 

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7 minutes ago, DolanDave said:

My largest find is a 17 pound found in Gold Butte, Nevada.

Wow. That's a huge space rock, Dave - congrats! Those others wouldn't happen to be Nininger meteorites in your photo, would they?

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A few years ago I was detecting in the Franconia strewn field in Mohave County, Arizona. Out of the corner of my eye, I spotted a reddish orange rock that stood out in stark contrast from the surrounding light-colored soil. After careful excavation, I was holding the largest meteorite I've found to date. 




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yes, it pays to be specking while detecting...very nice!


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Nice Franconia Lunk....

  Don't those suckers sometimes just stick out like a sore thumb.....


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Here are a  few more of the meteorites I've found within the Franconia strewn field.

This is a "puzzle" meteorite; several fragments that fit together. They were all excavated from the same dig hole:



This beautiful individual stone was hidden in plain sight among some basalt boulders:



This nifty little chondrite was also nestled between basalt boulders:



This small individual was found while revisiting an area in the small end of the strewn field, an area that a friend and I first detected for gold nuggets in 1999. We didn't find any gold, but each of us did find a handful of small "hot rocks" that we tossed aside. Had we known then what stony meteorites were, we may have been the first to discover the strewn field:


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    • By Steve Herschbach
      Gold in Meteorites and in the Earth's Crust, U.S.G.S Circular 603 by Robert Sprague Jones, 1968
      Original pdf
      The reported gold contents of meteorites range from 0.0003 to 8.74 parts per million. Gold is siderophilic, and the greatest amounts in meteorites are in the iron phases. Estimates of the gold content of the earth's crust are in the range of 0.001 to 0.006 parts per million.
      This report is one of several that summarize available data on the occurrence of gold. They have been prepared as background material for the Heavy Metals program of the U.S. Geological Survey, an intensified program of search for new sources of heavy metals, including gold. Data on the occurrence of gold in meteorites and tektites are summarized, and recent estimates of the abundance of gold in the earth's crust are compiled.
      Table 1 shows reported gold contents of tektites, aerolites, siderolites, and siderites. The table is arranged so that the data on tektites, which have the lowest iron contents, are at the top of the table and the data on siderites, which have the highest iron contents, are at the bottom. The other meteorite groups are intermediate in iron contents except for the siderolites. Gold is most abundant in the siderites and least abundant in the tektites; therefore, meteorites supply good evidence of the siderophilic character of gold. The tektites and the achondrites are relatively low in gold contents and are distinct from the other groups of meteorites in this respect. The gold contents of tektites and achondrites are of the same order of magnitude as those of terrestrial rocks. The other meteorites, on the average, contain appreciably more gold.
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      The gold contents of the octahedrites do nott seem to vary with the coarseness of the octahedrites. Cobb (1967) noted that most of his valules for gold in meteorites were in the range of 0.2 to 2.5 ppm. Cobb (1967) and Goldberg, Uchiyama, and Brown ( 1951) analyzed parts (three in all) of the same meteorite, and Cobb obtained lower values. The average values of gold in hexahedrites were also low compared with those of Goldberg, Uchiyama, and Brown (1951). For the same 11 meteorites analyzed by neutron-activation methods by Goldberg, Uchiyama, and Brown (1951) and Fouche and Smales (1966), the average contents were 1.1 ppm gold and 0.9 ppm gold, respectively.
      The various types of siderites have differing amounts of gold. Ataxites and octahedrites have an average gold content of ab1ut 1.3 ppm, which is about twice that for hexahedrites (0.64 ppm). The hexahedrites usually have less nickel than either the ataxites or the octahedrites. The Santa Catharina ataxite contained the most nickel ( 38.5 percent) and r.lso the most gold (4.0 ppm), but the Deep Springs ataxite (13.4 percent nickel) contained the least amount of gold (less than 0.1 ppm, but considered as 0.05 ppm for table 1).
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      Aller, L. H., 1961, The abundance of the elements: New York, Interscience Publishers, 283 p.
      Anderson, J. S., 1945, Chemistry of the earth: Royal Soc. New South Wales Jour. and Proc., v. 76, p. 329-345 .
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      Berg, Georg, 1929, Vorkommen und Geochemie der mineralischen Rohstoffe : Leipzig, 414 p.
      Clarke, F. W., and Washington, H. S., 1924, The composition of the earth's crust: U.S. Geol. Survey Prof. Paper 127, 117 p.
      Cobb, J. C., 1967, A trace-element study of iron meteorites: Jour. Geophys. Research, v. 72, no. 4, p. 1329-1341.
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      DeGrazia, A. R., and Haskin, Larry, 1964, On the gold content of rocks: Geochim. et Cosmochim. Acta, v. 28, p. 559-564.
      Fersman, A. E., 1933, Geokhimiya, Tom 1: Leningrad, 328 p.
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      Goldschmidt, V. M., 1934, Drei Vortage uber Geochemie: Geol. Foren. Stockholm For h. v. 56 p. 385-427.
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      Noddack, Ida, and Noddack, Walter, 1930, Die Haufigkeit der chemischen Elementen: Naturw., v. 18, p. 757-764.
      Parker, R. L., 1967, Composition of the earth's crust: U.S. Geol. Survey Prof. Paper 440-D, 19 p.
      Polanski, Antoni, 1948, A new essay of evaluation of the chemical composition of the earth: Soc. Amis Sci. et Lettres Poznan Bull., Ser. B., v. 9, p. 25-46.
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      Shcherbakov, Yu. G., and Perezhogin, G. A., 1964, Geochemistry of gold: Geochemistry Internat., no. 3, p. 489-496.
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