[meteorite-list] portales etch- a strange thing happened 2-day

From: harlan trammell <skyrox_at_meteoritecentral.com>
Date: Thu Apr 22 10:01:33 2004
Message-ID: <F477JqGgry7KN575V7k00022373_at_hotmail.com>

<html><div style='background-color:'><DIV>
<P>wow! kinda like ultrasound to test out the baby!<BR><BR></P></DIV>
<DIV></DIV>&gt;From: "meteorite1.com" <CAPRICORN89_at_EARTHLINK.NET>
<DIV></DIV>&gt;Subject: Re: [meteorite-list] portales etch- a strange thing happened 2-day
<DIV></DIV>&gt;Date: Thu, 13 Jun 2002 12:39:58 -0700
<DIV></DIV>&gt;Hi Harlan,
<DIV></DIV>&gt;Yes, that will happen. With just the right stroke, usually a short quick back-and-forth, especially with slightly wet sandpaper, around #400 - 600 grade, you will see the Widmanstatten figures. it is a quick way to check your pattern prior to acid etching. I have this happen on irons all the time.
<DIV></DIV>&gt;Ron Hartman
<DIV></DIV>&gt; ----- Original Message -----
<DIV></DIV>&gt; From: harlan trammell
<DIV></DIV>&gt; To: meteorite-list_at_meteoritecentral.com
<DIV></DIV>&gt; Sent: Thursday, June 13, 2002 12:19 PM
<DIV></DIV>&gt; Subject: [meteorite-list] portales etch- a strange thing happened 2-day
<DIV></DIV>&gt; while vigorously hand-sanding a portales metal slice w/ #600 paper, a strange thing began to occur. upon several passes over clean dry paper, i looked to see if i had gotten rid of the old finish and a widmanstatten pattern appeared! no acid- bare hands, dry. i tried it again wet and it happened again. i noticed that the filings were actually follwing and sticking to the crystal lines. theses filings further accentuated the pattern, but could be wiped off and the pattern was less visible then. but the pattern was infact still "etched" there in the newly SANDED finish even after alcohol wipe. any ideas or other encounters of this?
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Received on Thu 13 Jun 2002 03:53:07 PM PDT

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