MexicoDoug
3/27/2019 9:13:05 AM |
Anne, this show nearly all the characteristics of Gebel Kamil - a great example of "The Perfectly (rounded) Hillside" |
Anne Black
3/26/2019 1:55:28 PM |
Thank you everybody, I am glad you like that funny looking meteorite. To me it is shaped like a candy-dish! Thank you for the explanation Bernd, and yes John do send pictures Paul, I am sure he will like them. And Andi, yes supply is running low on the market, but it is mostly because the impact site is very close to the border to Sudan, and the Egyptian military there does not like visitors. |
John Divelbiss
3/26/2019 1:45:24 PM |
Bernd,
Thank you for the education on slickensides and irons. I too have an SA that has what looks like a slickenside. Maybe I'll share it on MPOD soon. |
Bernd Pauli
3/26/2019 1:40:25 PM |
Hello John, Buchwald mentions slickensides on the U.S.N.M. Sikhote-Alin piece on p. 1128 (Fig. 1629) of his Handbook of Iron Meteorite (Volume 3): "A distorted fragment of 1.28 kg produced during the impact with the frozen ground. S l i c k e n - s i d e d surfaces alternate with twisted and ragged portions." |
John Divelbiss
3/26/2019 11:16:29 AM |
I had never heard the term slickenside used with an iron meteorite. I suppose it is the shear plane of any material, whether stony or iron in the case of meteorites? |
Matthias
3/26/2019 5:05:33 AM |
I agree completely to all what my previous speakers already have mentioned. Would like to add the fact - even if there is most probably no causality at play - that some of the earliest known artifacts of mankind made of meteoritical iron were found in Southern Egypt too. Great piece, Anne. |
Bernd Pauli
3/26/2019 4:08:35 AM |
Yes, Andi, those pockmarked surfaces that look like a lizard's skin! Slickensides as well! Thanks, Anne, for sharing this interesting chunk of Gebel Kamil! |
Andi Koppelt
3/26/2019 1:16:31 AM |
Very nice gebels, Anne! In the past this meteorite was long time underrated: It is a crater maker, an ungrouped iron and its shrapnels show dramatic shear planes and typical pockmarked surfaces. Seems as supply ran out for it slowly vanishes from the market. |
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