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)
[email protected]
www.LunarRock.com
IMCA 3163
====================
Click here for my current eBay auctions:
http://search.ebay.com/_W0QQsassZnaturesvault
----- Original Message -----
From: "Meteorites USA" <[email protected]>
To: <[email protected]>
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)
[email protected]
www.LunarRock.com
IMCA 3163
====================
Click here for my current eBay auctions:
http://search.ebay.com/_W0QQsassZnaturesvault
----- Original Message ----- From: "Galactic Stone & Ironworks"
<[email protected]>
To: "Meteorite List" <[email protected]>
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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