[meteorite-list] Metal content in Lunars?

From: Greg Hupe <gmhupe_at_meteoritecentral.com>
Date: Wed, 3 Mar 2010 12:47:31 -0500
Message-ID: <BD88898C612B46B4A4E3408D85DAC87C_at_Gregor>

Hello All,

In my experience, I have only had one occurrence where I could detect a
minute pull by a magnet to a known lunar. On the exterior of NWA 4932 there
was visible metal that would make a rare Earth magnet stick, a little bit.
After analysis by a lab, I was pleasantly surprised when it turned out to be
Lunar! I think NWA 4932 went against the rule though, so chances are that if
a magnet is drawn to a stone, it is most likely not a Lunar meteorite. The
very best thing to do if you want to know what a stone/meteorite is, have it
analyzed by a professional and qualified lab.

While I have had unexpected good luck in several cases, I have also
experienced the dreaded "Earth Rock" result from gambling on a stone or
making sure of what something is. The possibility of something being Lunar
always outweighs the costs of confirmation in my opinion!

Hope this helps, and Good Luck!

Best regards,
Greg

====================
Greg Hupe
The Hupe Collection
NaturesVault (eBay)
gmhupe at htn.net
www.LunarRock.com
IMCA 3163
====================
Click here for my current eBay auctions:
http://search.ebay.com/_W0QQsassZnaturesvault

----- Original Message -----
From: "Meteorites USA" <eric at meteoritesusa.com>
To: <meteorite-list at meteoritecentral.com>
Sent: Wednesday, March 03, 2010 12:30 PM
Subject: Re: [meteorite-list] Metal content in Lunars?


> Thanks Greg,
>
> Are the lunars with visible metal detectably magnetic? Can you notice any
> magnetism at all with them or is the metal mostly superficial?
>
> Regards,
> Eric
>
> On 3/3/2010 9:06 AM, Greg Hupe wrote:
>> Hi MikeG,
>>
>> Most of the first discovered Lunar meteorites had no real visible metal
>> on polished surfaces. As more have been discovered over the last 10
>> years, there are numerous Lunars that have visible metal. A few examples
>> are; NWA 2995, NWA 4472, NWA 4884, NWA 4932, NWA 5000, NWA 5406, SAU 300
>> and a couple other Omani Lunars that I can not remember at the moment.
>> I'm sure I am missing others, but this is a good list to start with!
>>
>> Best regards,
>> Greg
>>
>> ====================
>> Greg Hupe
>> The Hupe Collection
>> NaturesVault (eBay)
>> gmhupe at htn.net
>> www.LunarRock.com
>> IMCA 3163
>> ====================
>> Click here for my current eBay auctions:
>> http://search.ebay.com/_W0QQsassZnaturesvault
>>
>> ----- Original Message ----- From: "Galactic Stone & Ironworks"
>> <meteoritemike at gmail.com>
>> To: "Meteorite List" <meteorite-list at meteoritecentral.com>
>> Sent: Tuesday, March 02, 2010 4:24 PM
>> Subject: [meteorite-list] Metal content in Lunars?
>>
>>
>>> Hi Listees,
>>>
>>> After posting some photos of my oddball brecciated meteorites, several
>>> of you emailed me to say that the meteorite resembled a weathered
>>> lunar - specifically one of the Shisr lunars from Oman. I must admit,
>>> that there is a strong resemblance between them. And I would be very
>>> fortunate and happy to find an unexpected 18-gram lunar hiding in my
>>> uNWA box. But, this meteorite has visible metal fleck in it and it
>>> exhibits attraction to a magnet. I have always been told (and read)
>>> than lunars are not attracted to magnets and rarely have any visible
>>> free metal.
>>>
>>> So, does the presence of metal and magnetic attraction rule out my
>>> weird breccia as a lunar? If so, then it's probably some kind of L or
>>> LL impact melt breccia like Bison. Which would still be interesting
>>> and fun, but a little anti-climactic after the lunar speculation.
>>>
>>> I'd like to direct this question to those folks who have handled a lot
>>> of lunars firsthand, like Adam and Greg Hupe, or some of the
>>> scientists on the List.
>>>
>>> Best regards,
>>>
>>> MikeG
>>>
>>> --
>>> ------------------------------------------------------------
>>> Mike Gilmer - Galactic Stone & Ironworks Meteorites
>>> http://www.galactic-stone.com
>>> http://www.facebook.com/galacticstone
>>> ------------------------------------------------------------
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>>
>>
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Received on Wed 03 Mar 2010 12:47:31 PM PST