AW: [meteorite-list] scanner and hexahedrite vs camera and hexaedrite

Alexander Seidel gsac at gmx.net
Mon Sep 11 11:54:52 EDT 2006


Thanks a bunch Andi for showing these pics, and I´m very much looking forward to receiving your prepared slice, which will be my very own share of Boguslavka, soon.

Hexahedrites are no easy task for a photographer or a scanner, not even if you discuss a specimen right in front of you, "in person" so to say. I had the great pleasure of meeting Andi a couple of weeks ago in Hamburg and handed him my 34.8 g slice of Guadalupe y Calvo for inspection. I must admit he was more skilled than me to point me to those tiny lines in between an otherwise rather bare polished suface which were not due to scratches or something evil like that, but were in fact: Neumann lines! Quite hidden in this case, but present nonetheless! Sometimes you have to look really closely, and sometimes a photograph or scanner pic won´t do the specimen in front of you justice.

P.S.: sorry Sergey, I had simply overlooked your scale figures at the bottom and left side of your beautiful pic! Nonetheless, some "material scale", a scale cube or a scale stripe or even a pencil or knife or something like this will usually work better with ones "imagination" than just a figure... :-)

Best,
Alex
Berlin/Germany 


-------- Original-Nachricht --------
Datum: Mon, 11 Sep 2006 17:21:52 +0200
Von: "Andreas Gren" <info at meteoritenhaus.de>
An: "\'Sergey Vasiliev\'" <petrovich at sv-meteorites.com>
Betreff: AW: [meteorite-list] scanner and hexahedrite vs camera and hexaedrite

> But a camera is also able to do a nice job, even with one light source.
> The Neumannlines appears much finer, especially in small slices. 
> Best Regards
> Andi
> 
> www.meteoritenhaus.de/img/Boguslavka10.jpg
> 
> www.meteoritenhaus.de/img/Boguslavka7_03g.jpg
> 
> 
> -----Ursprüngliche Nachricht-----
> Von: meteorite-list-bounces at meteoritecentral.com
> [mailto:meteorite-list-bounces at meteoritecentral.com] Im Auftrag von Sergey Vasiliev
> Gesendet: Montag, 11. September 2006 14:34
> An: Meteorite-list at meteoritecentral.com
> Betreff: [meteorite-list] scanner and hexahedrite
> 
> Hello List,
> I just want to share the image I got from my scanner and full slice of
> Boguslavka hexahedrite.
> http://sv-meteorites.iol.cz/boguslavka.jpg
> Usually I'm taking a pictures with my camera but sometimes scanner does a
> better job.
> Don't you think so? ;-)
> Sergey
> 
> -----------------------------------------
> Sergey Vasiliev
> U Dalnice 839,
> Prague 5, 15500
> Czech Republic
> ------------------------------------------
> http://www.sv-meteorites.com
> http://impactites.net
> http://systematic-mineralogy.com
> 
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