[meteorite-list] Gao, Gao & Gao

[JKGwilliam]

The Gao -melt (H imb) is a wonderful meteorite to 
look at.  Here's a picture of a half stone owned by Keith Vazquez.

<http://www.meteoriteimpact.com/gaomelt.htm>

Best,
John Gwilliam



At 10:30 AM 3/15/2007, Zelimir Gabelica wrote:
>Hello Bernd, list,
>
>Bernd, thanks much for your wise thoughts and 
>advices. Gao is indeed a very popular meteorite, 
>probably because it is as showy as abundant in 
>weight and (different) shapes. I can understand 
>Steve's falling in love for these.
>I also second your suggestion, namely that Steve 
>should do more to valorize his Gao collection.
>
>This brings me to a question that is probably 
>puzzling most of us since a while.
>You might not ignore that besides "our old good 
>friend Gao (H5)" (that actually carries the 
>official name "Gao-Guenié"), there are 2 other Gaos (or Gao-Guéniés):
>
>1) Gao(b) that is a CR (S1), found by Eric 
>Twelker in a parcel full of "normal Gaos" sent 
>to him from Burkina Faso. The 2 small stones he 
>got weighed 344 g (Bernd, by the way, a slice of 
>that stuff is just outstanding! I bet you also 
>got one.... See Eric's site: there are 2 pieces left!)
>
>2) The Gao-melt (H imb) described and put for 
>sale by Eric Olson. This stuff is definitely far 
>different from Gao (H5) in that, when cut, this 
>almost black meteorite shows "melts and rivers" just as Portales or others.
>Definitely a weird stuff. See pictures on Eric's site.
>E. Olson is reporting a tkw of 570+ grams. 
>However, I got a few years ago 3 such Gao-melt 
>individuals from a quite different source 
>(directly from Burkina, not from Eric's source) 
>that are exactly the same. They already showed a 
>weird outline when complete (uncut). Once cut, 
>not only they showed the strange metled parts 
>but also huge vugs, some of which reaching 20+ mm !!
>E. Olson is anouncing on his site since a time 
>that these are "under study". Did someone got more recent news ?
>
>Note: my source confirmed thet Gao imb and Gao 
>(H5) are (still being) found on the unique 
>strewnfield. To my knowledge, nothing is known 
>about the place where Gao(b) was found...
>
>I suggest Steve starts inquiring about these 
>other  2 Gaos and perhaps envisages to extend 
>his collection to "Gao, Gao and Gao".
>
>By the way, here are the tkw's I have in my archives:
>
>Gao-Guénié (H5): 999+ at 99++ kg
>Gao-Guénié (H imb): several at 570+ g (Olson's site)
>Gao-Guénié (b) (CR)): 2@@344 g (Twelker's site)
>
>Could someone (along with the two Erics) provide an update for these figures ?
>
>Thanks and have a nice day all,
>
>Zelimir
>
>
>A 16:33 15/03/2007 +0000, bernd.pauli at paulinet.de a écrit :
>>Knock, knock !
>>
>>"You seem to be building quite a collection of Gao! Go get 'em!"
>>
>>"The next step in his obsession -- head for the strewn field."
>>
>>
>>Hello Steve and List,
>>
>>First off: I must also admit that this is becoming a very impressive,
>>an awesome collection of Gao meteorites! Sincere congratulations!
>>
>>The next best step after displaying them for all of us to see, would or could
>>now be to study them, to compare them, to look at their respective fusion
>>crusts, to describe their individual 
>>characteristics, to do a little research on
>>their different degrees of weathering (and maybe even shock stage[s]), the
>>thickness or thinness of their fusion crusts, and so much more and then share
>>your observations with the List. This would give them a "life".
>>
>>Of course, you might also consider constructing a special Gao info page:
>>
>>dates of fall / find, classification, history, 
>>repositories, strewn field parameters,
>>scientific papers / articles, and, and, and, ...
>>
>>"The next step in his obsession -- head for the strewn field."
>>
>>.. Well, why not!? Gao instead of London if the 
>>risks involved are not too high!
>>He would surely come back with some personal finds or purchases.
>>
>>Such specimens have an even higher, personal value!
>>
>>
>>Best regards,
>>
>>Bernd
>>
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>
>Prof. Zelimir Gabelica
>Université de Haute Alsace
>ENSCMu, Lab. GSEC,
>3, Rue A. Werner,
>F-68093 Mulhouse Cedex, France
>Tel: +33 (0)3 89 33 68 94
>Fax: +33 (0)3 89 33 68 15
>
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