[meteorite-list] Re:[meteorite-list]question

From: mafer <mafer_at_meteoritecentral.com>
Date: Thu Apr 22 10:23:47 2004
Message-ID: <004701c2e83a$91d50840$6501a8c0_at_vs.shawcable.net>

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Hi Robert and list
I can't comment yet on the polish as I don't believe I have a large =
enough piece or stone that isn't already polished, but I'm getting great =
results on my thin sections with 1000 grit. I use a two part epoxy, they =
only have to be resistant to yellowing and uv degradation and of course, =
clear. Super glue is hygroscopic which means it wants to attrack water =
over time (unless they've gotten a better formula) and it will become =
brittle and loose adhesion (they learned this the hard way in =
implantable pacemaker assembly).
Opticon is good, but its a tad expensive, as is the uv curable epoxies. =
I currently am trying a clear fly rod 2 part epoxy which seems to give =
good results. It has a added feature in which it is somewhat flexible =
which most other epoxies aren't.
Mark
  ----- Original Message -----=20
  From: robert jackson=20
  To: Meteorite-list_at_meteoritecentral.com=20
  Sent: Tuesday, March 11, 2003 5:33 PM
  Subject: [meteorite-list] Re:[meteorite-list]question


  Question 1. How do the dealers get that great polish on the L 6 =
stones they sell. I take my slices and go up through 600 and maybe 800 =
then still don't get that great finish. Is it diamond....
  Question 2. I've been making up some thin sections. Using the lap on =
a facetor. Does pretty good job. Several have come out great on the =
polarized microscope. But the glues that you use on the slide. Super =
glue is not so good. Opticon is best so far, any ideas.
  Haven't posted in a long time, Bob Jackson, Riverside.

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<DIV><FONT size=3D2>Hi Robert and list</FONT></DIV>
<DIV><FONT size=3D2>I can't comment yet on the polish as I don't believe =
I have a=20
large enough piece or stone that isn't already polished, but I'm getting =
great=20
results on my thin sections with 1000 grit. I use a two part epoxy, they =
only=20
have to be resistant to yellowing and uv degradation and of course, =
clear. Super=20
glue is hygroscopic which means it wants to attrack water over time =
(unless=20
they've gotten a better formula) and it will become brittle and loose =
adhesion=20
(they learned this the hard way in implantable pacemaker =
assembly).</FONT></DIV>
<DIV><FONT size=3D2>Opticon is good, but its a tad expensive, as is the =
uv curable=20
epoxies. I currently am trying a clear fly rod 2 part epoxy which seems =
to give=20
good results. It has a added feature in which it is somewhat flexible =
which most=20
other epoxies aren't.</FONT></DIV>
<DIV><FONT size=3D2>Mark</FONT></DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: =
0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A href=3D"mailto:tannershouse_at_earthlink.net"=20
  title=3Dtannershouse_at_earthlink.net>robert jackson</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20
  href=3D"mailto:Meteorite-list_at_meteoritecentral.com"=20
  =
title=3DMeteorite-list_at_meteoritecentral.com>Meteorite-list@meteoritecentr=
al.com</A>=20
  </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Tuesday, March 11, 2003 =
5:33=20
  PM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> [meteorite-list]=20
  Re:[meteorite-list]question</DIV>
  <DIV><BR></DIV>
  <DIV><FONT face=3DArial size=3D2>Question 1.&nbsp; How do the dealers =
get that=20
  great polish on the L 6 stones they sell. I take my slices and go up =
through=20
  600 and maybe 800 then still don't get that great finish. Is it=20
  diamond....</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2>Question 2.&nbsp; I've been making up =
some thin=20
  sections. Using the lap&nbsp;on a facetor. Does pretty good job. =
Several have=20
  come out great on the polarized microscope. But the glues that you use =
on the=20
  slide. Super glue is not so good. Opticon is best so far, any=20
  ideas.</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2>Haven't posted in a long time, Bob =
Jackson,=20
  Riverside.</FONT></DIV></BLOCKQUOTE></BODY></HTML>

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Received on Tue 11 Mar 2003 08:55:43 PM PST


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