[meteorite-list] Sulfide-slag
From: Rosemary Hackney <ltcrose_at_meteoritecentral.com>
Date: Thu Apr 22 10:01:31 2004 Message-ID: <002b01c20cce$3ad48e00$c777d6d1_at_default> This is a multi-part message in MIME format. ------=_NextPart_000_0028_01C20CA4.511CB180 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Well.. I do not know.. It does not look the same... I bought some and = named it my Blair Witch rock because it came from the bottom of the hill = where she ( lives) lived. Derek sent me a pieces to have analyzed. I = have a friend who is a chemist and has access to an electron microscope. = ( SEM). He is going to analyze it for me. I bought it for a novelty.. = not a meteorite. Rosie ----- Original Message -----=20 From: magellon=20 To: Robert Verish ; meteorite-list_at_meteoritecentral.com=20 Sent: Wednesday, June 05, 2002 2:18 PM Subject: Re: [meteorite-list] Sulfide-slag Does this sound like the same stuff?=20 UNKNOWN METAL ROCK BURKITTSVILLE DUG NICKEL=20 Best,=20 Ken Newton=20 me=20 Robert Verish wrote:=20 I apologize for this Off-Topic subject, but I would=20 like to take this opportunity to personally thank Troy=20 Bell, for his efforts in trying to determine the=20 origin of a particular type of meteor-wrong that is=20 commonly seen on eBay. Troy found his first specimen=20 in the gravel of a parking lot near where he lives in=20 Texas. When Troy told me that the gravel was a=20 typical "slag", I told him to try and find more of=20 this LBR (Little Black Rock) and to take some samples=20 of the slag gravel. He found 2 more "little black=20 rocks", which he sent to me, along with samples of the=20 slag gravel.=20 My examination confirmed that the LBRs and the slag=20 have a common origin. In addition, these LBRs are=20 made from the same material that I have encountered=20 numerous times from people wanting their "meteorites"=20 identified. And I'm sure many on this List have=20 encountered this, as well. Lately, a third of the=20 meteor-wrongs that I have encountered are of this=20 "sulfide-rich" material. Although there appears to be=20 various sources for this material, I have always=20 contended that this was waste material from an ore=20 smelting process [slag]. But now, Troy's observant=20 eye has found the "smoking gun" evidence that confirms=20 that this material is a slag.=20 This confirmation also raises the concern that some of=20 these LBRs could have elevated concentrations of=20 arsenic and lead.=20 The following images show a cut surface of this=20 material. Because of the above concern, BE ADVISED -=20 to never DRY cut or grind this material, and to treat=20 the cuttings and coolant with caution.=20 Image #1:=20 <http://www.geocities.com/bolidechaser/troybell.jpg>=20 The interior "looks like" a natural sulfide mineral=20 with a highly specular, metallic luster. But it is=20 not a metal. Mostly crystalline with needle-shaped=20 laths (an atypical crystal habit for sulfides). The=20 exterior has a patina. Having been exposed to the=20 forces of weathering, and over time, the sulfide-rich=20 rock has formed a black tarnish.=20 Image #2:=20 <http://www.geocities.com/bolidechaser/tbell-cu.jpg>=20 Close-up of the cut surface. Locally vesicular;=20 cavities will show cleavage for these synthetic=20 (man-made) crystals. There are some inclusions of=20 melted silicates.=20 As mentioned earlier, this kind of meteor-wrong has=20 long been seen on eBay, but typically being auctioned=20 as "Arizona ?? Meteorite"!!=20 I couldn't find any current "meteorite" auction like=20 this, but this "mineral" auction looks like the same=20 kind of material, but without the black tarnish:=20 <http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3D2108278605>=20 Now that it has been identified, my curiosity about=20 this material has been satisfied, and I will now move=20 on to the next "mystery rock" (hopefully, it will be a=20 real meteorite;-). But in the meanwhile, it may prove=20 beneficial (since this stuff is so widespread) to have=20 this "identified" material on a meteor-wrong web page=20 in order to educate future meteor-wrong sellers.=20 Bob V.=20 __________________________________________________=20 Do You Yahoo!?=20 Yahoo! - Official partner of 2002 FIFA World Cup=20 http://fifaworldcup.yahoo.com=20 ______________________________________________=20 Meteorite-list mailing list=20 Meteorite-list_at_meteoritecentral.com=20 http://www.pairlist.net/mailman/listinfo/meteorite-list ------=_NextPart_000_0028_01C20CA4.511CB180 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 6.00.2716.2200" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT face=3DArial size=3D2>Well.. I do not know.. It does not look = the same...=20 I bought some and named it my Blair Witch rock because it came from the = bottom=20 of the hill where she ( lives) lived. Derek sent me a pieces to = have=20 analyzed. I have a friend who is a chemist and has access to an electron = microscope. ( SEM). He is going to analyze it for me. I bought it = for a=20 novelty.. not a meteorite.</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>Rosie</FONT></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=3Dmagellon_at_earthlink.net=20 href=3D"mailto:magellon_at_earthlink.net">magellon</A> </DIV> <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A = title=3Dbolidechaser_at_yahoo.com=20 href=3D"mailto:bolidechaser_at_yahoo.com">Robert Verish</A> ; <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> Wednesday, June 05, 2002 = 2:18=20 PM</DIV> <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: [meteorite-list]=20 Sulfide-slag</DIV> <DIV><BR></DIV>Does this sound like the same stuff? <BR> <A=20 = href=3D"http://cgi.netscape.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3D= 2108427221">UNKNOWN=20 METAL ROCK BURKITTSVILLE DUG NICKEL</A> <BR>Best, <BR>Ken Newton = <BR><A=20 href=3D"http://members.ebay.com/aboutme/magellon/">me</A>=20 <P>Robert Verish wrote:=20 <BLOCKQUOTE TYPE=3D"CITE">I apologize for this Off-Topic subject, but = I would=20 <BR>like to take this opportunity to personally thank Troy <BR>Bell, = for his=20 efforts in trying to determine the <BR>origin of a particular type = of=20 meteor-wrong that is <BR>commonly seen on eBay. Troy found his = first=20 specimen <BR>in the gravel of a parking lot near where he lives in=20 <BR>Texas. When Troy told me that the gravel was a <BR>typical = "slag",=20 I told him to try and find more of <BR>this LBR (Little Black Rock) = and to=20 take some samples <BR>of the slag gravel. He found 2 more = "little=20 black <BR>rocks", which he sent to me, along with samples of the = <BR>slag=20 gravel.=20 <P>My examination confirmed that the LBRs and the slag <BR>have a = common=20 origin. In addition, these LBRs are <BR>made from the same = material=20 that I have encountered <BR>numerous times from people wanting their = "meteorites" <BR>identified. And I'm sure many on this List = have=20 <BR>encountered this, as well. Lately, a third of the=20 <BR>meteor-wrongs that I have encountered are of this = <BR>"sulfide-rich"=20 material. Although there appears to be <BR>various sources for = this=20 material, I have always <BR>contended that this was waste material = from an=20 ore <BR>smelting process [slag]. But now, Troy's observant = <BR>eye has=20 found the "smoking gun" evidence that confirms <BR>that this = material is a=20 slag.=20 <P>This confirmation also raises the concern that some of <BR>these = LBRs=20 could have elevated concentrations of <BR>arsenic and lead.=20 <P>The following images show a cut surface of this = <BR>material. =20 Because of the above concern, BE ADVISED - <BR>to never DRY cut or = grind=20 this material, and to treat <BR>the cuttings and coolant with = caution.=20 <P>Image #1: <BR><<A=20 = href=3D"http://www.geocities.com/bolidechaser/troybell.jpg">http://www.ge= ocities.com/bolidechaser/troybell.jpg</A>>=20 <P>The interior "looks like" a natural sulfide mineral <BR>with a = highly=20 specular, metallic luster. But it is <BR>not a metal. = Mostly=20 crystalline with needle-shaped <BR>laths (an atypical crystal habit = for=20 sulfides). The <BR>exterior has a patina. Having been = exposed to=20 the <BR>forces of weathering, and over time, the sulfide-rich = <BR>rock has=20 formed a black tarnish.=20 <P>Image #2: <BR><<A=20 = href=3D"http://www.geocities.com/bolidechaser/tbell-cu.jpg">http://www.ge= ocities.com/bolidechaser/tbell-cu.jpg</A>>=20 <P>Close-up of the cut surface. Locally vesicular; <BR>cavities will = show=20 cleavage for these synthetic <BR>(man-made) crystals. There are some = inclusions of <BR>melted silicates.=20 <P>As mentioned earlier, this kind of meteor-wrong has <BR>long been = seen on=20 eBay, but typically being auctioned <BR>as "Arizona ?? Meteorite"!! = <BR>I=20 couldn't find any current "meteorite" auction like <BR>this, but = this=20 "mineral" auction looks like the same <BR>kind of material, but = without the=20 black tarnish:=20 <P><<A=20 = href=3D"http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3D21082786= 05">http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3D2108278605</= A>>=20 <P>Now that it has been identified, my curiosity about <BR>this = material has=20 been satisfied, and I will now move <BR>on to the next "mystery = rock"=20 (hopefully, it will be a <BR>real meteorite;-). But in the = meanwhile,=20 it may prove <BR>beneficial (since this stuff is so widespread) to = have=20 <BR>this "identified" material on a meteor-wrong web page <BR>in = order to=20 educate future meteor-wrong sellers.=20 <P>Bob V.=20 <P>__________________________________________________ <BR>Do You = Yahoo!?=20 <BR>Yahoo! - Official partner of 2002 FIFA World Cup <BR><A=20 = href=3D"http://fifaworldcup.yahoo.com">http://fifaworldcup.yahoo.com</A> = <P>______________________________________________ <BR>Meteorite-list = mailing=20 list <BR>Meteorite-list_at_meteoritecentral.com <BR><A=20 = href=3D"http://www.pairlist.net/mailman/listinfo/meteorite-list">http://w= ww.pairlist.net/mailman/listinfo/meteorite-list</A></P></BLOCKQUOTE></BLO= CKQUOTE></BODY></HTML> ------=_NextPart_000_0028_01C20CA4.511CB180-- Received on Wed 05 Jun 2002 04:18:59 PM PDT |
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