[meteorite-list] Re:[meteorite-list]question
From: walter branch <branchw_at_meteoritecentral.com>
Date: Thu Apr 22 10:23:47 2004 Message-ID: <002f01c2e842$dc145200$63cf9f44_at_l1s2m3> This is a multi-part message in MIME format. ------=_NextPart_000_002C_01C2E818.F2FB2680 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Bob, >Question 1. How do the dealers get that great polish on the L 6 stones = they sell.=20 Short answer: Many dealers buy them that way :-) Long answer: Don't know how others do it, but I use this polisher http://www.kingsleynorth.com/allyouneed.html I rarely go above 600. Make sure you do not re-use the old coolant=20 when you go up to the next higher polish and make sure you polish out any saw marks before you go up. I have seen some=20 really bad work by people who did not follow at least these two rules- of-thumb. If you have a problem with a sloping or "dipping" surface, perhaps from a poor cut-job, you have to level the surface first, with a low number polish (like that 180 mech diamond)=20 I have half-stones of several meteorites including Gao and NWA 869 which look really nice when polished to about 600. Not just L6s but many stones look nice when the polish is done right. Millbillillie looks very nice with a smooth polish. (yes folks, I know some stones do not look nice with a high polish)=20 >Question 2. I've been making up some thin sections. Sorry, can't help with this one. I have never made a thin section. -Walter --------------------------------------------- www.branchmeteorites.com ----- Original Message -----=20 From: robert jackson=20 To: Meteorite-list_at_meteoritecentral.com=20 Sent: Tuesday, March 11, 2003 8:33 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. ------=_NextPart_000_002C_01C2E818.F2FB2680 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML 6.00.2800.1141" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT face=3DArial size=3D2>Hi Bob,</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV> <DIV><FONT face=3DArial size=3D2>>Question 1. How do the = dealers get that=20 great polish on the L 6 stones they sell. </FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT><FONT face=3DArial = size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>Short answer:</FONT></DIV> <DIV><FONT face=3DArial size=3D2>Many dealers buy them that way = :-)</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>Long answer:</FONT></DIV> <DIV><FONT face=3DArial size=3D2>Don't know how others do it, but I use = this=20 polisher</FONT></DIV> <DIV><FONT face=3DArial size=3D2><A=20 href=3D"http://www.kingsleynorth.com/allyouneed.html">http://www.kingsley= north.com/allyouneed.html</A></FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>I rarely go above 600. Make sure = you do not=20 re-use the old coolant </FONT></DIV> <DIV><FONT face=3DArial size=3D2>when you go up to the next higher = polish and make=20 sure</FONT></DIV> <DIV><FONT face=3DArial size=3D2>you polish out any saw marks before you = go=20 up. I have seen some </FONT></DIV> <DIV><FONT face=3DArial size=3D2>really bad work by people who did not = follow at=20 least these two rules-</FONT></DIV> <DIV><FONT face=3DArial size=3D2>of-thumb. If you have a problem = with a=20 sloping or "dipping" surface,</FONT></DIV> <DIV><FONT face=3DArial size=3D2>perhaps from a poor cut-job, you have = to level the=20 surface first,</FONT></DIV> <DIV><FONT face=3DArial size=3D2>with a low number polish (like that 180 = mech=20 diamond) </FONT></DIV> <DIV><FONT face=3DArial size=3D2>I have half-stones of several = meteorites=20 including Gao</FONT></DIV> <DIV><FONT face=3DArial size=3D2>and NWA 869 which look really nice when = polished to=20 about 600.</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>Not just L6s but many stones look nice = when=20 the polish is done right.</FONT></DIV> <DIV><FONT face=3DArial size=3D2>Millbillillie looks very nice with a = smooth=20 polish.</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>(yes folks, I know some stones do = not look=20 nice with a high polish)</FONT> </DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>>Question 2. I've been making = up some thin=20 sections.</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>Sorry, can't help with this one. = I have never=20 made a thin section.</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>-Walter</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV>---------------------------------------------<BR><A=20 href=3D"http://www.branchmeteorites.com">www.branchmeteorites.com</A></DI= V></DIV> <DIV> </DIV> <DIV> </DIV> <BLOCKQUOTE dir=3Dltr=20 style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px solid; MARGIN-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 title=3Dtannershouse_at_earthlink.net=20 href=3D"mailto:tannershouse_at_earthlink.net">robert jackson</A> </DIV> <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20 title=3DMeteorite-list_at_meteoritecentral.com=20 = href=3D"mailto:Meteorite-list_at_meteoritecentral.com">Meteorite-list@meteor= itecentral.com</A>=20 </DIV> <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Tuesday, March 11, 2003 = 8:33=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. 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. I've been making up = some thin=20 sections. Using the lap 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> ------=_NextPart_000_002C_01C2E818.F2FB2680-- Received on Tue 11 Mar 2003 09:55:37 PM PST |
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