[meteorite-list] EBAY Slag for sale

From: Norm Lehrman <nlehrman_at_meteoritecentral.com>
Date: Fri, 6 Jul 2007 22:40:30 -0700 (PDT)
Message-ID: <282908.41174.qm_at_web81006.mail.mud.yahoo.com>

Kevin & list,

The torch test described on our website helps to
distinguish between natural glasses and tektite glass,
but it may not help with glassy industrial slags.
Such materials have already been heated to a molten
state for an extended period and will have exsolved
much of their volatile content. Consequently, they
will likely behave similarly to tektite glass. I have
just added a note to our website tektite tests page to
help avoid this confusion.

Cheers,
Norm
http://tektitesource.com


--- kevin decker <innocentwolf15 at hotmail.com> wrote:


---------------------------------

Georgia is rich in Iron ore mining/smelting.I just
yesterday was given some black glassy chunks.I thought
hmmmm..Impact material/tektite?..I mean these chunks
are Huge!..I just today did the test described on
Norms site "the Tektite Source"..with an oxy/acetylene
torch.I didn't froth up like pic 1,but instead looks
like pic 2..I held the torch there for more than a
minute..and it reached Incandescent stage,,blinding
hot.I don't know what to think of this material,the
largest chunk I picked up today,weighs,an astounding
14 pounds!...(and that was just a chunk off a much
bigger peice) Alot of this material has lechatelierite
threads.
It also has microscopic Iron Spherules,along with
bigger chunks of Iron,some looking like Sikhote-Alin
material.(sculpted Shrapnel).Color is a light yellow
to a light green,but looks black,
The veiw inside these, show bubbles with what I take
as bubble trails,the Bubbles get bigger as they
approach the surface.Any Ideas?..I just bought a cheap
Kodak Digital cam..and will take some pics tomm,then
I'll get them developed and put on a cd. Best
regards,


Kevin W.L.Decker

---------------------------------
From: Impactika at aol.com
To: korotev at wustl.edu,
meteorite-list at meteoritecentral.com
Subject: Re: [meteorite-list] EBAY Slag for sale
Date: Fri, 6 Jul 2007 15:35:37 EDT
>Colorado is very rich in slag too.
>For nearly a century CF & I operated a large smelter
just south of Pueblo.
>There are still "hills" of slag all around it. And
slag was found to be cheap
>and very practical to build the under-laying layers
of roads and rail-road
>tracks, it is solid and does not shatter in winter.
>Result: it is everywhere!
>And I am regularly handed some at local mineral
shows.
>
>Anne M. Black
>_www.IMPACTIKA.com_ (http://www.IMPACTIKA.com)
>_IMPACTIKA at aol.com_ (mailto:IMPACTIKA at aol.com)
>President, I.M.C.A. Inc.
>_www.IMCA.cc_ (http://www.IMCA.cc)
>
>-----------------------------------------------------------------------
>
>In a message dated 7/6/2007 8:53:47 A.M. Mountain
Daylight Time,
>korotev at wustl.edu writes:
>At 14:59 05-07-07 Thursday, STARSANDSCOPES at aol.com
wrote:
> >I don't know why this slag tests positive for
nickel, but it does!
>
>
>People have been making iron and disposing of the
>waste for several hundred years in this area and
>much of the US. The most common kinds of local
>meteorwrong I encounter are hematite nodules -
>iron ore - that weather out of the local
>limestone. This stuff has been used as feed
>stock for mom-and-pop iron smelting operations in
>the Ozarks since the 1800's. As Tom Phillips
>said, the processes were not as efficient as
>today, so a lot of iron metal was left
>behind. People have brought us all kinds of
>glassy stuff with metal in it, one of which even had
the imprint of a bolt:
>
>http://meteorites.wustl.edu/meteorwrongs/m026.htm
>
>
>Two months ago a fellow came to my office with
>the ugliest 60-lb chunk of iron I've ever
>seen. He'd dug it up while "grub hoeing" in
>south St. Louis Co. There was no smooth surface,
>it was very rusty, and it was full of
>cavities. It didn't "look like" an iron
>meteorites to me, but I have no experience with
>iron meteorites that have been in the ground for
>100's to 1000's of years, so I really don't know
>what to expect. In a post 2 months ago, Eric
>Twelker said "Those of us who are lucky enough to
>have hundreds or thousands of meteorites pass
>through our hands possess a store of knowledge
>that has real value to academics that haven?t had
>this experience." I agree, and I wish I had that
knowledge!
>
>I neglected to get a photo of the thing. I did a
>quick nickel test, though, with one of those
>nickel allergy test kits and got a positive
>result*. So, I cut a piece off and analyzed it
>for the Fe, Ni, Co, Au, and Ir. Strange results:
>
> >Fe 89%
> >Ni 600 ppm
> >Co 62 ppm
> >Ir 1 ppb
> >Au 12 ppb
>
>The object cannot be a meteorite because the
>concentrations of Ni and Co are 100x too low for
>metal in any kind of meteorite. Yet, the
>concentrations of Ni, Co, Ir, and Au are all
>higher that I would expect for iron smelted from
>iron ore. More weird is that the relative
>concentrations of those elements (ratios) are not
>out of line for an iron meteorite. It's as
>though the metal is 1% iron meteorite and 99%
>pure iron. I don't know what this thing is.
>
>Similarly, a fellow from Colorado sent this photo
>and a small sample a couple of years ago:
>
>http://meteorites.wustl.edu/meteorwrongs/m122.htm
>
>It is also a a man-made piece of iron, but one
>with far more Ni and Co than in any iron oxide ore
I've ever analyzed.
>
> >Fe 90%
> >Ni 2590 ppm
> >Co 131 ppm
> >Ir <14 ppb
> >Au 85 ppb
>
>I don't get it.
>
>Randy Korotev
>
>
>* Note that the dimethyl glyoxime [DMG] test for
>Ni is very sensitive. If it gives a positive
>result for 600 ppm Ni, then it is too sensitive
>to really be of much use in distinguishing
>meteoritic metal from terrestrial metal. A
>negative result should be helpful, however, if the
test is done correctly.)
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>
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Received on Sat 07 Jul 2007 01:40:30 AM PDT