Thank you Dr. Korotev! (Randy)
I appreciate your response, and I know you can understand the confusion.
Comparing the list of pairings of the 130 total "stones" Your list
combined with Norbert's gives a better understanding of just how few
Lunar meteorites there actually are. Re-figuring the percentages of 68
"paired" Lunar meteorites out of 51,105 total classified meteorites
that's 0.133% of all meteorites.
Wow! That's an "astronomically" small percentage.
Thanks!
Regards,
Eric
On 8/23/2010 11:53 AM, Randy Korotev wrote:
Dear Eric:
My alphanumeric list contains 140 named stones,
http://meteorites.wustl.edu/lunar/moon_meteorites_list_alpha.htm
with the caveat that some do not actually have official names yet
(e.g., "Unnamed 12"). They're on the list because I've analyzed them
and know them to be lunar. That's the main reason that my number,
140, is larger than the MetBull number, 130. It's my hope that all
the unnamed get official names someday.
"Does this mean there are 130 Lunar meteorites that have been
recovered and classified, Ever?" Stones, yes; meteorites, no.
My composition-ordered list has only 68 meteorites because of known or
strongly-suspected pairings.
http://meteorites.wustl.edu/lunar/moon_meteorites_list_alumina.htm
Norbert Classen keeps close tabs on this and has 67 on his list (he
and I both know about one that is on my list but may not be on his
list yet):
http://www.meteoris.de/luna/list.html
So, ~68 is the total number of known lunar meteorites. That
information is not easily available from the MetBull database. It
sometimes takes years to establish that different named stones are or
are not paired.
A confusion for your calculations is that practically every individual
lunar and martian meteorite stone gets it's own name and line-item in
the MetBull database whereas all Allende stones have one name.
Randy
At 12:40 PM 8/23/2010 Monday, you wrote:
Hi List,
I know this has been talked about on-list but... I keep getting this
question, or people that say they have found a "Lunar" meteorite. I'm
wondering how many there actually are. I've heard numbers thrown
about haphazardly, but no one has been able to give me a clear and
concise answer.
The Met-Bull has "...130 records found for meteorites with historical
types that contain "Lunar"...'
Does this mean there are 130 Lunar meteorites that have been
recovered and classified, Ever? Or is my search flawed? (as a side
note, it also says there are "...92 records found for meteorites with
historical types that contain "Martian"...")
Dr. Randy Korotev's "List of Lunar Meteorites" on the Washinton
University website has the number at 140.
http://meteorites.wustl.edu/lunar/moon_meteorites_list_alpha.htm
Just for giggles I wanted to know how many total classified
meteorites there actually were on the planet.
"...39146 valid meteorite names; 11959 provisional names; 4589
full-text writeups..."
That's a whopping 51,105 classifications. Wow!
Doing some simple math, 130 Lunar meteorites out of 51,105 total
classifications means that "Lunars" only makeup about 0.254% of the
total number of meteorite ever classified. (0.180% for Martian
meteorites).
Are these number correct?
Regards,
Eric
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