Rocks from outer space - duck and cover http://www.mindat.org/msgboard-98.html Fri, 27 Nov 2009 13:33:13 +0000 Phorum 5.2.8-RC1 http://www.mindat.org/forum.php?read,98,157695,157752#msg-157752 http://www.mindat.org/forum.php?read,98,157695,157752#msg-157752
[www.thaindian.com]]]> Matteo Chinellato Meteorites Mon, 26 Oct 2009 15:57:10 +0000 http://www.mindat.org/forum.php?read,98,156530,157744#msg-157744 http://www.mindat.org/forum.php?read,98,156530,157744#msg-157744 Matteo Chinellato Meteorites Mon, 26 Oct 2009 13:43:09 +0000 http://www.mindat.org/forum.php?read,98,157695,157737#msg-157737 http://www.mindat.org/forum.php?read,98,157695,157737#msg-157737 Johan Kjellman Meteorites Mon, 26 Oct 2009 12:42:45 +0000 http://www.mindat.org/forum.php?read,98,156530,157735#msg-157735 http://www.mindat.org/forum.php?read,98,156530,157735#msg-157735 You don't happen to have access to this article?

Oscar A. Turone "The Caperr Meteorite." in Meteorite, May 2002

I need a pdf of it.]]> Johan Kjellman Meteorites Mon, 26 Oct 2009 12:34:28 +0000 http://www.mindat.org/forum.php?read,98,157695,157734#msg-157734 http://www.mindat.org/forum.php?read,98,157695,157734#msg-157734 Patrick Haynes (2) Meteorites Mon, 26 Oct 2009 12:22:54 +0000 http://www.mindat.org/forum.php?read,98,157695,157731#msg-157731 http://www.mindat.org/forum.php?read,98,157695,157731#msg-157731 Marco Barsanti Meteorites Mon, 26 Oct 2009 12:02:19 +0000 http://www.mindat.org/forum.php?read,98,157695,157730#msg-157730 http://www.mindat.org/forum.php?read,98,157695,157730#msg-157730 Matteo Chinellato Meteorites Mon, 26 Oct 2009 11:46:58 +0000 http://www.mindat.org/forum.php?read,98,157695,157729#msg-157729 http://www.mindat.org/forum.php?read,98,157695,157729#msg-157729
Jolyon]]> Jolyon Ralph Meteorites Mon, 26 Oct 2009 11:44:28 +0000 http://www.mindat.org/forum.php?read,98,157695,157721#msg-157721 http://www.mindat.org/forum.php?read,98,157695,157721#msg-157721 Matteo Chinellato Meteorites Mon, 26 Oct 2009 10:51:25 +0000 http://www.mindat.org/forum.php?read,98,157695,157718#msg-157718 http://www.mindat.org/forum.php?read,98,157695,157718#msg-157718
Jolyon]]> Jolyon Ralph Meteorites Mon, 26 Oct 2009 10:48:25 +0000 http://www.mindat.org/forum.php?read,98,156530,157710#msg-157710 http://www.mindat.org/forum.php?read,98,156530,157710#msg-157710 Matteo Chinellato Meteorites Mon, 26 Oct 2009 09:54:21 +0000 http://www.mindat.org/forum.php?read,98,156530,157706#msg-157706 http://www.mindat.org/forum.php?read,98,156530,157706#msg-157706 I gather then that the Elbogen fall has survived more as a legend, as opposed to Ensisheim that has been recorded in contemporary texts and images.

cheers/johan]]> Johan Kjellman Meteorites Mon, 26 Oct 2009 09:44:13 +0000 http://www.mindat.org/forum.php?read,98,157695,157703#msg-157703 http://www.mindat.org/forum.php?read,98,157695,157703#msg-157703 Gerald Costlow Meteorites Mon, 26 Oct 2009 09:13:41 +0000 http://www.mindat.org/forum.php?read,98,157695,157695#msg-157695 http://www.mindat.org/forum.php?read,98,157695,157695#msg-157695
[readrussia.com]

[en.rian.ru]]]> Matteo Chinellato Meteorites Mon, 26 Oct 2009 05:17:47 +0000 http://www.mindat.org/forum.php?read,98,156530,157661#msg-157661 http://www.mindat.org/forum.php?read,98,156530,157661#msg-157661
La popolazione di Elbogen, in Germania, ricorda molte storie riguardo la meteorite ferrosa caduta probabilmente nel 1400. Una leggenda narra che il malvagio Burggraf, vice-imperatore del Castello di Elbogen, sia stato trasformato in un pezzo di ferro dopo l'ennesimo richiamo al lavoro dei propri servitori, per questo la meteorite viene anche chiamata il " Burggraf Stregato ". La massa venne custodita nela cantina del castello e si diceva che se veniva spostata, subito la massa tornava al suo posto. Per dissolvere queste credenze e per creare fastidio ai Boemi, nel 1742 l'esercito francese gettò la massa nel pozzo del castello, profondo 40 metri. Qui vi rimase fino al 1776 quando il pozzo venne prosciugato e facilmente recuperata. Il pezzo venne portato nella cantina del municipio del paese dove venne rinvenuto da Neumann che fece delle prove per fondere la massa ma senza avere successo. Neumann iniziò a studiare il pezzo e concluse che si trattava di una meteorite.

For nogata I have find a text in dutch language in the book of Rolf W.Buhler " Meteorite - Urmaterie aus dem interplanetaren raum " Weltbild Verlag. Its a rare book to find in the market.]]> Matteo Chinellato Meteorites Sun, 25 Oct 2009 16:43:46 +0000 http://www.mindat.org/forum.php?read,98,156530,157652#msg-157652 http://www.mindat.org/forum.php?read,98,156530,157652#msg-157652
mille grazie!]]> Johan Kjellman Meteorites Sun, 25 Oct 2009 15:06:09 +0000 http://www.mindat.org/forum.php?read,98,156530,157651#msg-157651 http://www.mindat.org/forum.php?read,98,156530,157651#msg-157651 Johan Kjellman Meteorites Sun, 25 Oct 2009 15:02:18 +0000 http://www.mindat.org/forum.php?read,98,156549,157561#msg-157561 http://www.mindat.org/forum.php?read,98,156549,157561#msg-157561 Unfortunatly, it was about five miles as a crow flies, through old growth forest,
across a river, in about five feet of snow. It was also dark out.]]> Adam Kelly Meteorites Sat, 24 Oct 2009 18:09:45 +0000 http://www.mindat.org/forum.php?read,98,156549,157490#msg-157490 http://www.mindat.org/forum.php?read,98,156549,157490#msg-157490 Mark Rheinberger Meteorites Sat, 24 Oct 2009 03:29:02 +0000 http://www.mindat.org/forum.php?read,98,156530,157422#msg-157422 http://www.mindat.org/forum.php?read,98,156530,157422#msg-157422 Matteo Chinellato Meteorites Fri, 23 Oct 2009 17:02:55 +0000 http://www.mindat.org/forum.php?read,98,156549,156696#msg-156696 http://www.mindat.org/forum.php?read,98,156549,156696#msg-156696 Alfredo Petrov Meteorites Mon, 19 Oct 2009 00:34:07 +0000 http://www.mindat.org/forum.php?read,98,156549,156606#msg-156606 http://www.mindat.org/forum.php?read,98,156549,156606#msg-156606 Mark Rheinberger Meteorites Sun, 18 Oct 2009 05:49:48 +0000 http://www.mindat.org/forum.php?read,98,156549,156556#msg-156556 http://www.mindat.org/forum.php?read,98,156549,156556#msg-156556 Mark Rheinberger Meteorites Sat, 17 Oct 2009 22:52:15 +0000 http://www.mindat.org/forum.php?read,98,156549,156549#msg-156549 http://www.mindat.org/forum.php?read,98,156549,156549#msg-156549 www.theglobeandmail.com]]]> Maggie Wilson Meteorites Sat, 17 Oct 2009 20:35:06 +0000 http://www.mindat.org/forum.php?read,98,156530,156530#msg-156530 http://www.mindat.org/forum.php?read,98,156530,156530#msg-156530
thanks/johan]]> Johan Kjellman Meteorites Sat, 17 Oct 2009 17:11:42 +0000 http://www.mindat.org/forum.php?read,98,149850,150640#msg-150640 http://www.mindat.org/forum.php?read,98,149850,150640#msg-150640


I finally got a chance to take a closer look at the “tektites”.



I am still somewhat caught on a definitive answer.



On the plus side:
They are the correct color, overall shape, the are definitely glass, correct size range, and some have surface features similar to tektites.

On the negative side:
I broke a real tektite from the Australasian fall for comparison. It was difficult to break the Australasian tektite; it took several tries. Your tektite broke much easier. However, both appeared to be a shiny black glass. Breaking easier makes me suspect that your tektite might have a higher water content. Real tektites have an extremely low water content, while obsidians have a fairly high water content.

Next, your tektite on a thin edge of broken glass has a light gray color with just the very slightest tint of green. The reason that green is so important is that at the high temperatures at which tektites are created, oxygen is driven out and the iron present is all converted to ferrous iron, giving the tektite a strong green color. The moldavites are all an intense green. The Australasian tektites are a dark brown with a green tint; their color comes from the ferrous green plus a reddish color from submicroscopic spherules of iron that were injected into the glass when the meteorite struck the ground. Your tektite only has a bare hint of green; it resembles some obsidians. There is a hint of some layering or color variation in you tektite. I lack a gem cutter’s diamond saw to make a thin slice of the tektite to examine it thoroughly.

The avocado surface texture is different than the surface of any tektite that I have ever observed. On the other hand, some of your tektites do have surfaces very similar to those found on real tektites.



I am still caught between the two possible origins: tektites versus volcanic glass. The main feature that will determine the answer is the water content of the glass. I checked on the Internet and I have the names and address of some geologists who might be interested and who can perform the necessary tests. If you want to, you can mention my name and title as referring you to them.



S.S. Hughes, J.W. Delano, and R.A. Schmidt
Department of Chemistry and Geology
Oregon State University
Corvallis, OR 97331

I hope this helps a bit. I would love for these stones to be real tektites, because it would represent a new fall.
But I am cautious because of the large amounts of obsidian that have erupted in the Oregon area.



Sincerely,
Roger Weller]]> Gordon c De'young Meteorites Wed, 02 Sep 2009 03:48:48 +0000 http://www.mindat.org/forum.php?read,98,149121,150339#msg-150339 http://www.mindat.org/forum.php?read,98,149121,150339#msg-150339 Matteo Chinellato Meteorites Sun, 30 Aug 2009 06:01:27 +0000 http://www.mindat.org/forum.php?read,98,149850,150198#msg-150198 http://www.mindat.org/forum.php?read,98,149850,150198#msg-150198 Gordon c De'young Meteorites Fri, 28 Aug 2009 17:30:08 +0000 http://www.mindat.org/forum.php?read,98,150008,150088#msg-150088 http://www.mindat.org/forum.php?read,98,150008,150088#msg-150088 Lachrisha Smith Meteorites Thu, 27 Aug 2009 19:09:02 +0000 http://www.mindat.org/forum.php?read,98,149850,150087#msg-150087 http://www.mindat.org/forum.php?read,98,149850,150087#msg-150087 Lachrisha Smith Meteorites Thu, 27 Aug 2009 18:51:35 +0000