Great stuff---thanks Al
Kirk.....:-)
----- Original Message -----
From: <almi...@localnet.com>
To: <meteorite-list@meteoritecentral.com>
Sent: Friday, August 12, 2011 3:11 AM
Subject: [meteorite-list] Lunar and Apollo Meteorites
The Apollo program which brought back some 840 lbs of material or about 7
times the amount of found lunar meteorites.
The average weight of a lunar meteorite is 382.895 grams. However if you
subtract the two largest lunar meteorites which weigh about half the total
of all found lunar meteorites there is an average weight of 210.82 grams.
One could actually subtract a few more large specimens and the average
weight would be down in the 150 average gram range.
So your average lunar meteorite will or should weight from 150 to 400
grams average. You still have to keep an eye out for the big guys though.
Before 1997 only about 10 or 12 lunar meteorites were known. From 1997
after DAG 262 was found, till 2010 a total of 54 specimens were located
which is an average of four per year. Most of these were located in
basically one continent.
Of the lunar types there are: feldspathic breccia types (most common 37),
mafic breccia types (3), mingled breccias (16), and the mare bassalts
(10). Or about 66 unique specimens not paired.
Keep in mind my figures could be off or now outdated. I added all these up
in about an hours time. A good reference on lunar meteorites continues to
be: Washington University in St. Louis.
http://meteorites.wustl.edu/lunar/moon_meteorites_list_alpha.htm
All my best!
--AL Mitterling
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