[meteorite-list] Black Onaping (was: Shatter Cone)

From: Count Deiro <countdeiro_at_meteoritecentral.com>
Date: Fri, 14 Jan 2011 14:40:13 -0800 (GMT-08:00)
Message-ID: <31408178.1295044813394.JavaMail.root_at_elwamui-little.atl.sa.earthlink.net>

Dan, Bernd and List,

Dan said "I would be interested to have others check their collections for this feature."

In examining the "Stac Fuda" (A 1.2 Ga suevite impact breccia from Northwestern coastal Scotland} specimens I have, as well as several specimens of "Alamo" (A 379 Ma impact breccia), neither one is attracted to a magnet, nor do they display metallic blebs under 90X magnification.

Count Deiro
IMCA 3536


-----Original Message-----
>From: Dan Wray <daniel_wray at comcast.net>
>Sent: Jan 14, 2011 7:40 AM
>To: "Bernd V. Pauli" <bernd.pauli at paulinet.de>, meteorite-list at meteoritecentral.com
>Subject: Re: [meteorite-list] Black Onaping (was: Shatter Cone)
>
>Bernd and all,
>
>I have a large collection of impactites from all over the world, yes they
>were caused by meteoritic impact but few have material identifiable from the
>impactor. My Monturaqui contains visible metallic grains but I had never
>thought to check my other impactites. Thus far I have only found one other
>and that is a slice of Ternovka, a black material that is quite magnetic. I
>would be interested to have others check their collections for this feature.
>
>Dan
>----- Original Message -----
>From: "Bernd V. Pauli" <bernd.pauli at paulinet.de>
>To: <meteorite-list at meteoritecentral.com>
>Sent: Friday, January 14, 2011 4:41 AM
>Subject: [meteorite-list] Black Onaping (was: Shatter Cone)
>
>
>> Hello Larry, Dan, and List,
>>
>>> I do wonder about the metal in the Onaping.
>>> Typically, is there metal in Onaping?
>>
>>> I pulled out my slice of Black Onaping, it is indeed
>>> magnetic in certain spots. This is a revelation.
>>
>> No wonder Black Onaping material is magnetic given the fact
>> that the Sudbury Structure is the result of a meteorite impact.
>>
>> In other words, Black Onaping contains sulfides and nickel(-iferous)
>> inclusions ... hence magnetic!
>>
>> Best wishes,
>>
>> Bernd
>>
>>
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Received on Fri 14 Jan 2011 05:40:13 PM PST