[meteorite-list] Sulfide-slag

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From: magellon <magellon_at_meteoritecentral.com>
Date: Thu Apr 22 10:01:31 2004
Message-ID: <3CFE6417.699BF34A_at_earthlink.net>

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Does this sound like the same stuff?
UNKNOWN METAL ROCK BURKITTSVILLE DUG NICKEL
Best,
Ken Newton
me

Robert Verish wrote:

> I apologize for this Off-Topic subject, but I would
> like to take this opportunity to personally thank Troy
> Bell, for his efforts in trying to determine the
> origin of a particular type of meteor-wrong that is
> commonly seen on eBay. Troy found his first specimen
> in the gravel of a parking lot near where he lives in
> Texas. When Troy told me that the gravel was a
> typical "slag", I told him to try and find more of
> this LBR (Little Black Rock) and to take some samples
> of the slag gravel. He found 2 more "little black
> rocks", which he sent to me, along with samples of the
> slag gravel.
>
> My examination confirmed that the LBRs and the slag
> have a common origin. In addition, these LBRs are
> made from the same material that I have encountered
> numerous times from people wanting their "meteorites"
> identified. And I'm sure many on this List have
> encountered this, as well. Lately, a third of the
> meteor-wrongs that I have encountered are of this
> "sulfide-rich" material. Although there appears to be
> various sources for this material, I have always
> contended that this was waste material from an ore
> smelting process [slag]. But now, Troy's observant
> eye has found the "smoking gun" evidence that confirms
> that this material is a slag.
>
> This confirmation also raises the concern that some of
> these LBRs could have elevated concentrations of
> arsenic and lead.
>
> The following images show a cut surface of this
> material. Because of the above concern, BE ADVISED -
> to never DRY cut or grind this material, and to treat
> the cuttings and coolant with caution.
>
> Image #1:
> <http://www.geocities.com/bolidechaser/troybell.jpg>
>
> The interior "looks like" a natural sulfide mineral
> with a highly specular, metallic luster. But it is
> not a metal. Mostly crystalline with needle-shaped
> laths (an atypical crystal habit for sulfides). The
> exterior has a patina. Having been exposed to the
> forces of weathering, and over time, the sulfide-rich
> rock has formed a black tarnish.
>
> Image #2:
> <http://www.geocities.com/bolidechaser/tbell-cu.jpg>
>
> Close-up of the cut surface. Locally vesicular;
> cavities will show cleavage for these synthetic
> (man-made) crystals. There are some inclusions of
> melted silicates.
>
> As mentioned earlier, this kind of meteor-wrong has
> long been seen on eBay, but typically being auctioned
> as "Arizona ?? Meteorite"!!
> I couldn't find any current "meteorite" auction like
> this, but this "mineral" auction looks like the same
> kind of material, but without the black tarnish:
>
> <http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2108278605>
>
> Now that it has been identified, my curiosity about
> this material has been satisfied, and I will now move
> on to the next "mystery rock" (hopefully, it will be a
> real meteorite;-). But in the meanwhile, it may prove
> beneficial (since this stuff is so widespread) to have
> this "identified" material on a meteor-wrong web page
> in order to educate future meteor-wrong sellers.
>
> Bob V.
>
> __________________________________________________
> Do You Yahoo!?
> Yahoo! - Official partner of 2002 FIFA World Cup
> http://fifaworldcup.yahoo.com
>
> ______________________________________________
> Meteorite-list mailing list
> Meteorite-list_at_meteoritecentral.com
> http://www.pairlist.net/mailman/listinfo/meteorite-list

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Does this sound like the same stuff?
  <a href="http://cgi.netscape.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2108427221">UNKNOWN
METAL ROCK BURKITTSVILLE DUG NICKEL</a>
 Best,
 Ken Newton
 <a href="http://members.ebay.com/aboutme/magellon/">me</a>
Robert Verish wrote:
<blockquote TYPE=CITE>I apologize for this Off-Topic subject, but I would
 like to take this opportunity to personally thank Troy
 Bell, for his efforts in trying to determine the
 origin of a particular type of meteor-wrong that is
 commonly seen on eBay.  Troy found his first specimen
 in the gravel of a parking lot near where he lives in
 Texas.  When Troy told me that the gravel was a
 typical "slag", I told him to try and find more of
 this LBR (Little Black Rock) and to take some samples
 of the slag gravel.  He found 2 more "little black
 rocks", which he sent to me, along with samples of the
 slag gravel.
My examination confirmed that the LBRs and the slag
 have a common origin.  In addition, these LBRs are
 made from the same material that I have encountered
 numerous times from people wanting their "meteorites"
 identified.  And I'm sure many on this List have
 encountered this, as well.  Lately, a third of the
 meteor-wrongs that I have encountered are of this
 "sulfide-rich" material.  Although there appears to be
 various sources for this material, I have always
 contended that this was waste material from an ore
 smelting process [slag].  But now, Troy's observant
 eye has found the "smoking gun" evidence that confirms
 that this material is a slag.
This confirmation also raises the concern that some of
 these LBRs could have elevated concentrations of
 arsenic and lead.
The following images show a cut surface of this
 material.  Because of the above concern, BE ADVISED -
 to never DRY cut or grind this material, and to treat
 the cuttings and coolant with caution.
Image #1:
 <<a href="http://www.geocities.com/bolidechaser/troybell.jpg">http://www.geocities.com/bolidechaser/troybell.jpg</a>>
The interior "looks like" a natural sulfide mineral
 with a highly specular, metallic luster.  But it is
 not a metal.  Mostly crystalline with needle-shaped
 laths (an atypical crystal habit for sulfides).  The
 exterior has a patina.  Having been exposed to the
 forces of weathering, and over time, the sulfide-rich
 rock has formed a black tarnish.
Image #2:
 <<a href="http://www.geocities.com/bolidechaser/tbell-cu.jpg">http://www.geocities.com/bolidechaser/tbell-cu.jpg</a>>
Close-up of the cut surface. Locally vesicular;
 cavities will show cleavage for these synthetic
 (man-made) crystals. There are some inclusions of
 melted silicates.
As mentioned earlier, this kind of meteor-wrong has
 long been seen on eBay, but typically being auctioned
 as "Arizona ?? Meteorite"!!
 I couldn't find any current "meteorite" auction like
 this, but this "mineral" auction looks like the same
 kind of material, but without the black tarnish:
<<a href="http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2108278605">http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2108278605</a>>
Now that it has been identified, my curiosity about
 this material has been satisfied, and I will now move
 on to the next "mystery rock" (hopefully, it will be a
 real meteorite;-).  But in the meanwhile, it may prove
 beneficial (since this stuff is so widespread) to have
 this "identified" material on a meteor-wrong web page
 in order to educate future meteor-wrong sellers.
Bob V.
__________________________________________________
 Do You Yahoo!?
 Yahoo! - Official partner of 2002 FIFA World Cup
 <a href="http://fifaworldcup.yahoo.com">http://fifaworldcup.yahoo.com</a>
______________________________________________
 Meteorite-list mailing list
 Meteorite-list_at_meteoritecentral.com
 <a href="http://www.pairlist.net/mailman/listinfo/meteorite-list">http://www.pairlist.net/mailman/listinfo/meteorite-list</a></blockquote>
</html>

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Received on Wed 05 Jun 2002 03:18:48 PM PDT

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