[meteorite-list] Neither Carbonado Nor Meteorite

From: Fries, Marc D <marc.d.fries_at_meteoritecentral.com>
Date: Thu, 9 Apr 2009 09:14:20 -0700
Message-ID: <C6036CEC.75E6%Marc.D.Fries_at_jpl.nasa.gov>

A carbonado with fusion crust? My skepticism meter is pegged. If true it
would be of extraordinary scientific interest, but the problem is that
diamond doesn?t melt. It evaporates. Silicates are content to form what is
basically a liquid silicon oxide, but carbon oxides (CO, CO2) are gases, not
liquids. Diamond doesn?t flow ? it goes poof.

I looked at those pictures, and there are little spallation flakes on one
side that remind me an awful lot of a carbonate rock.

Caveat emptor.

Cheers,
MDF


On 4/9/09 8:32 AM, "Steve Schoner" <schoner at mybluelight.com> wrote:

> I can assure you and everyone that this is a real carbonado diamond. I have
> dealt this this ebay diamond distributor before and his items are exactly what
> he claims them to be.
>
> They are diamonds.
>
> I bought a nice one from this dealer some time ago. It is a specimen at 21
> carets and he had another which I pulled the bit at which was an extremely
> rare round one with fusion crust on the exterior.
>
> Yes, what looked like fusion crust ! With flow lines !
>
> I wish I had the $1,250 that he asked. He held it for a month or so for me,
> but I could not come up with the money due to medical bills. He re-listed it
> at $3,500. It sold. :-( to my loss, and his gain :-) And to the person
> that bought it ;->
>
> There are articles out now that deal with the possibility that these unique
> diamonds are the products of an asteroid impact 2.9 billion years ago right at
> the points in Africa and South America where the two land masses were joined
> 2.9 billion years ago. These black diamonds are found no where else.
>
> Dr. Haggarty has some articles on this:
>
> http://www.bnl.gov/bnlweb/pubaf/pr/PR_display.asp?prID=07-X2
>
> Research is continuing. But the story Dr. Haggarty has revealed is a very
> interesting one.
>
> So the possibility of this being meteoric is up in the air, and the certainty
> that this is in fact a diamond is real.
>
> A carbonado of this size is extremely rare. I think the largest ever found
> is over 1 kg.
>
> This carbonado must be the second largest, and if so the price asked is in the
> right ball park.
>
> Steve Schoner
> IMCA #4470
>
>
>
> Date: Wed, 8 Apr 2009 12:59:57 -0400
> From: "JoshuaTreeMuseum" <joshuatreemuseum at embarqmail.com>
> Subject: [meteorite-list] Neither Carbonado Nor Meteorite
> To: <meteorite-list at meteoritecentral.com>
> Message-ID: <A1DF60D80FB8427B90BF63F04C55F1EB at ET>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=original
>
> Yet another meteorwrong on eBay. I'm pretty sure it's not a diamond either.
> Carbonados are black for one thing.....A raw meteorite as opposed to a
> cooked one?
>
> http://cgi.ebay.com/731CT-1-RAW-METEORITE-NATURAL-UNCUT-ROUGH-DIAMONDS_W0QQite
> mZ3003056869
> 88QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item300305686988&_trksid=p3286.c0
> .m14&_trkpar
> ms=72%3A1205%7C66%3A2%7C65%3A12%7C39%3A1%7C240%3A1309%7C301%3A1%7C293%3A1%7C29
> 4%3A50
>
> Phil Whitmer
>
>
>
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Received on Thu 09 Apr 2009 12:14:20 PM PDT