[meteorite-list] Neither Carbonado Nor Meteorite

[Fries, Marc D]

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 doesn¹t 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 doesn¹t 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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