[meteorite-list] Chelyabinsk meteorite

From: Shawn Alan <photophlow_at_meteoritecentral.com>
Date: Sat, 16 Mar 2013 21:23:17 -0700 (PDT)
Message-ID: <1363494197.65468.YahooMailNeo_at_web162605.mail.bf1.yahoo.com>

Hello Graham and Count and the rest of the Listers

By chance with any of the people on here with multiple samples do you have?photos of them grouped together to compare the bunch. Also, I think someone said Mike Farmer had posted an image/s of the them grouped together, is there a link, cause I missed that posting.

Count/ when you tested the chelyabinsk fragments with a magnet, were they all consistent on how they stuck?to and pulled from the neo magnet for the most part?
I also have a question for the List about the magnet test.

I have a small rare earth magnets which they are strong, but not super super strong. My question is, with some of the historic meteorites I have, can over time, the strength at which a LL or L or even a H meteorite increase over time, due to oxidation and or rusting? Why I ask is because is because I have two meteorite samples that fell in 1803 and both are from?France, but two different falls and are both L6. One sample is is less?magnetic than the other. The one that is stronger has? about the same attraction and pull to a H7 Forest City meteorite. All three meteorites come from top dealers and collectors, so I know the authenticity is genuine, but it seems some stones can have anomalys within, when tested with magnets. Has any other listers noticed this, and if so, why would this happen? I have also heard that some dealer has devised a full proof test to test stoney meteorites to see if they are LL L or H or HH, or did I just make up HH :)

Shawn Alan
IMCA 1633
ebay store
http://www.ebay.com/sch/imca1633ny/m.html
http://meteoritefalls.com/


----- Original Message -----
From: Graham Ensor <graham.ensor at gmail.com>
To: Count Deiro <countdeiro at earthlink.net>
Cc: Peter Scherff <PeterScherff at rcn.com>; meteorite-list at meteoritecentral.com
Sent: Saturday, March 16, 2013 6:24 PM
Subject: Re: [meteorite-list] Chelyabinsk meteorite

Hi Count....strange that yours do not have any of the brown crust or
other surface features common in most from the fall that were picked
up within days.

Graham

On Sat, Mar 16, 2013 at 10:01 PM, Count Deiro <countdeiro at earthlink.net> wrote:
> Peter and List....
>
> All nine Chelyabinsk/Chebarkul individuals that I have purchased from three different foreign sources resemble themselves. The specimens I have look like they could have come out of that pile that Mike Farmer posted. Mostly small individuals of less than three grams, black even fusion crust, no other coloration, regs, no cracking except for a few fracturing in flight with the result that the interior lithography is covered by black fusion product. None but a few that I've seen so far show more than the smallest impact marks and those display a typical grey chondritic, almost Portland cement color. Most landed on snow so have remained pristine. Heavier pieces will be recovered when the ice and snow melt. They are strongly attracted to a neo magnet and set off a detector easily, so I'm a little curious about the initial classification I've heard. Is LL6 S1 W1 and named Chebarkuhl..correct? Anyone...Ted?
>
> Send me your email address, Peter and I'll shoot you a photo.
>
> Regards,
>
> Count Deiro
> IMCA 3536
>
> -----Original Message-----
>>From: Peter Scherff <PeterScherff at rcn.com>
>>Sent: Mar 16, 2013 11:49 AM
>>To: meteorite-list at meteoritecentral.com
>>Subject: [meteorite-list] Chelyabinsk meteorite
>>
>>? ? ???I have had an opportunity to see samples of the Chelyabinsk
>>meteorite. I think that these stones are almost as distinctive as the
>>fireball was spectacular.
>>? ? ???Many samples have deep fractures.
>>? ? ???Many samples have patches of reddish fusion crust. The reddish crust
>>may be secondary crust. It formed on broken surfaces or perhaps in the lower
>>portions of regmaglypts. The reddish crust is smoother than the primary
>>crust.
>>? ? ???Some samples have a brownish "dusty" appearance.? Despite being
>>freshly collected.
>>? ? ???Has anyone else noticed these or other interesting characteristics
>>of this meteorite?
>>Thanks,
>>Peter
>>
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Received on Sun 17 Mar 2013 12:23:17 AM PDT