[meteorite-list] Curious stones?

From: Jason Utas <meteoritekid_at_meteoritecentral.com>
Date: Thu, 8 Jan 2009 08:05:23 +0100
Message-ID: <93aaac890901072305n302bd0d7u4538e489f1212f8f_at_mail.gmail.com>

Eric, Dan,
They look natural to me, but, at least the two that you have cut,
don't look like meteorites. Note the cavity in the middle of each -
they look much more like terrestrial concretions. That said, some of
your specimens do look like the weathered pallasite coming out of
Morocco - NWA 4482. Some of the fragments of that pallasite showed
the parallel fractures due to spalling displayed by two of your
pieces.
But there is a large weathered Mesosiderite find that has been
attributed at least several NWA numbers as well - both the Hupes and
Birdsells were selling quite a bit on ebay, though I can't find the
NWA number of it right now - short on time, sorry.
Regards,
Jason

On Thu, Jan 8, 2009 at 6:55 AM, Dan Wray <daniel_wray at comcast.net> wrote:
> Eric,
>
> I am posting this a second time since I didn't send it to the list as I had
> intended.
>
> Although I have seen meteorites this ugly, I am thinking Korra Korrabes, I
> don't believe that any of these are meteorites. They appear to be artifacts
> of iron prossessing, ie. slag.
>
> Dan Wray
>
> ----- Original Message ----- From: "Eric Wichman" <eric at meteoritewatch.com>
> To: <meteorite-list at meteoritecentral.com>
> Sent: Wednesday, January 07, 2009 6:54 PM
> Subject: [meteorite-list] Curious stones?
>
>
>> Hey all,
>>
>> This is not a "is this a meteorite?" question
>>
>> I've been going through cleaning out some boxes of NWA XXX meteorites and
>> I found some meteorites I forgot I had. All these stones are very highly
>> magenetic and snap hard to a neo mag.
>>
>> PHOTOS: http://www.meteoritesusa.com/odd-stones.htm
>>
>> The two broken and sliced pieces appear to be mesosiderite, and I have 5
>> other pieces that are 100% positive to be meso from this batch that I have
>> sliced and or sanded.
>>
>> Anyone have any information on these pieces or seen any other meteorites
>> like them? Send me a link, information or photos if you do...The odd part
>> about the sliced and broken pieces are the hollow interiors of some of the
>> stones. I have reservations on some of these pieces about their meteoric
>> origin but there are some in this batch that are 100% mesosiderite.
>>
>> What causes this? And if it's oxidation/corrosion why are they corroding
>> form the inside out?
>>
>> Eric
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Received on Thu 08 Jan 2009 02:05:23 AM PST