NWA 16286
NWA 16286
Found Sahara, 2023
Achondrite
Lunar Mare Basalt
Specimen are three slices, total 0.35g, in a gem box
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Classification Tony Irving, pending publication on Meteoritical Bulletin
The Lunar Maria are dark, low lying, and relatively uncratered part of the Moon. At a low Sun angle, they exhibit wrinkle ridges indicating that they refilled with solidified lava. Before we went to the Moon, we thought these Mare Basalts were relatively young because they were so poorly cratered. Surprise! The extensive collection of many, very fresh, basalt samples returned from several of the mare surfaces by the Apollo 11, 12, 15, and 17 and Luna 16 and 24 missions showed that these lunar surfaces were very old, with about 3.16 to 4.2 billion years old (Ga), and that the cratering flux was much less than expected.
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