Regarding photographing irons - I have had good success scanning them
on a flatbed scanner. I typically use 1200 dpi and color. Note, this
can produce a large file. I'll try and send a link to an image tomorrow.
Laurence
CMS
ASU
Message: 5
Date: Mon, 8 Oct 2007 15:38:56 -0400
From: "David & Kitt Deyarmin" <[EMAIL PROTECTED]>
Subject: [meteorite-list] Questions about Uruacu - Shiny Black
Inclusions / Images / Etching
To: <[email protected]>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
I am processing some Uruacu and some of the pieces have huge shiny
black
inclusions that almost have a mirror like reflective surface.
Does anyone know what these are, you can see a lot of them in this
354 gram
slice:
http://i131.photobucket.com/albums/p298/BobaDebt/Uruacu/
354grSlice1.jpg
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Does anyone have any tips on photographing this material. It
doesn't have a
lot of contrast but the etch looks 1000% better then what this
image shows:
http://i131.photobucket.com/albums/p298/BobaDebt/Uruacu/
354grSlice2.jpg
I have tried shooting it from various angles, with and with out flash,
inside, outside, nothing seems to really capture the look of the etch
----------------------------------------------------------------
Speaking of the etch, does anyone have any ideas on how to get more
contrast, I have tried a variety of Nitric Acid and Ferric Chloride
Solutions and I have even tried various combination of both.
If anyone can offer any help it would be greatly appreciated.
Thanks
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