[meteorite-list] (no subject)
From: capricorn89 <capricorn89_at_meteoritecentral.com>
Date: Thu Apr 22 09:47:12 2004 Message-ID: <002201c170e5$abbd0dc0$df36b2d1_at_earthlink.net> This is a multi-part message in MIME format. ------=_NextPart_000_001F_01C170A2.9CD98B00 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hello Gheri, That is the dreaded "lawrencite disease" (not actually lawrencite, but = ferric chloride from ground contamination. (New Campo? Hmmmm!) It may = or may not be only skin deep. I had one that seemed very bad, oozing = much, but once I sliced it, the slices refused to rust. Soak it in 99% isopropyl alcohol (rather inexpensive, but don't go to = the cheap store brands with large water content. Order from the = pharmacy.) Change the alcohol as soon as it turns reddish. Eventually, = after several changings, (days to weeks) it will leach out the = chlorides and will stop. Don't coat it. That will only seal in everything that is trying to get = out, and it will destroy itself internally which is what happened to = your Nantan, although with those you don't have to seal them. They will = self-destruct on their own. You can give it a brisk wire-brushing every once in awhile to get the = loose scale off. That will make it more attractive. Ron Hartman www.meteorite1.com ----- Original Message -----=20 From: gheri fouts=20 To: meteorite-list_at_meteoritecentral.com=20 Sent: Sunday, November 18, 2001 11:09 PM Subject: [meteorite-list] (no subject) My husband went to the Denver show and bought me a good size "new" = Campo del Cielo. Actually I wanted to try our hand at etching. It has = been sitting out on the shelf on a piece of paper since he brought it = home and today I noticed it was moist...actually it looked like it was = perspiring. Small red-brown spherical droplets of moisture were coming = from within and I am wondering what is happening, other than the obvious = rusting. If it is coming from within, does that mean there is moisture = in the rock? Should I cut it open and take a look? I have had a nantan = suddenly collapse into a mound of red-brown coarse powder shortly after = I purchased it. I know it is humid in Hawaii, but this rusting seems to = be coming from within. Any ideas? I wanted to steel brush it and coat = it with urethane but if it is in fact rusting from within, I think that = may only make it worse. I'd appreciate your thoughts. This is a very = humid climate=20 gheri fouts Honolulu, HI=20 "all science is either physics or stamp collecting" -- Ernest (1st Baron) Rutherford ------=_NextPart_000_001F_01C170A2.9CD98B00 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 content=3D"text/html; charset=3Diso-8859-1" = http-equiv=3DContent-Type> <META content=3D"MSHTML 5.00.2314.1000" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT size=3D2>Hello Gheri,</FONT></DIV> <DIV> </DIV> <DIV><FONT size=3D2>That is the dreaded "lawrencite disease" (not = actually=20 lawrencite, but ferric chloride from ground contamination. (New=20 Campo? Hmmmm!) It may or may not be only skin deep. I = had one=20 that seemed very bad, oozing much, but once I sliced it, the slices = refused to=20 rust.</FONT></DIV> <DIV> </DIV> <DIV><FONT size=3D2>Soak it in 99% isopropyl alcohol (rather = inexpensive,=20 but don't go to the cheap store brands with large water content. = Order=20 from the pharmacy.) Change the alcohol as soon as it turns = reddish. =20 Eventually, after several changings, (days to weeks) it will leach out = the=20 chlorides and will stop.</FONT></DIV> <DIV> </DIV> <DIV><FONT size=3D2>Don't coat it. That will only seal in = everything that is=20 trying to get out, and it will destroy itself internally which is what = happened=20 to your Nantan, although with those you don't have to seal them. = They will=20 self-destruct on their own.</FONT></DIV> <DIV> </DIV> <DIV><FONT size=3D2>You can give it a brisk wire-brushing every once in = awhile to=20 get the loose scale off. That will make it more = attractive.</FONT></DIV> <DIV> </DIV> <DIV><FONT size=3D2>Ron Hartman</FONT></DIV> <DIV><FONT size=3D2><A=20 href=3D"http://www.meteorite1.com">www.meteorite1.com</A></FONT></DIV> <DIV> </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:gfouts_at_pixi.com" title=3Dgfouts@pixi.com>gheri = fouts</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> Sunday, November 18, 2001 = 11:09=20 PM</DIV> <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> [meteorite-list] (no=20 subject)</DIV> <DIV><BR></DIV> <DIV><FONT face=3DArial size=3D2>My husband went to the Denver show = and bought me=20 a good size "new" Campo del Cielo. Actually I wanted to try our = hand at=20 etching. It has been sitting out on the shelf on a piece of = paper since=20 he brought it home and today I noticed it was moist...actually it = looked like=20 it was perspiring. Small red-brown spherical droplets of = moisture were=20 coming from within and I am wondering what is happening, other than = the=20 obvious rusting. If it is coming from within, does that mean = there is=20 moisture in the rock? Should I cut it open and take a = look? I have=20 had a nantan suddenly collapse into a mound of red-brown coarse powder = shortly=20 after I purchased it. I know it is humid in Hawaii, but this = rusting=20 seems to be coming from within. Any ideas? I wanted to = steel brush=20 it and coat it with urethane but if it is in fact rusting from within, = I think=20 that may only make it worse. I'd appreciate your thoughts. = This is=20 a very humid climate </FONT></DIV> <DIV> </DIV> <DIV><FONT face=3DArial size=3D2>gheri fouts</FONT></DIV> <DIV><FONT face=3DArial size=3D2>Honolulu, HI </FONT></DIV> <DIV> </DIV> <DIV><FONT face=3DArial size=3D2>"all science is either physics or = stamp=20 collecting"<BR>-- Ernest (1st Baron)=20 Rutherford</FONT></DIV></BLOCKQUOTE></BODY></HTML> ------=_NextPart_000_001F_01C170A2.9CD98B00-- Received on Mon 19 Nov 2001 05:33:46 AM PST |
 StumbleUpon del.icio.us reddit Yahoo MyWeb
|