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These are 3-4 times bigger than our Small Lunar Meteorites!
Lunar Meteorites (aka: moon meteorites), much like their Martian counterparts, are among the most popular and sought-after meteorites on the market! The total weight of lunar meteorites ever found is incredibly low compared to usual meteorites which makes them very rare. NWA 10823 is one of the latest, and most impressive meteorites that we have available.
Moon Meteorite Designation: NWA 10823
Classification: Lunar meteorite (feldspathic breccia)
Physical characteristics: Two identical appearing stones, weathered exterior with no fusion crust. Saw cuts reveal a polymict, feldspathic breccia with numerous white feldspar clasts, many in the range 1-5 mm, set in a dark gray matrix. There are also scattered cm-sized feldspathic clasts present. Some dark-colored domains have only sparse, fine grained, feldspathic clasts.
Petrography: (C. Agee, UNM) This meteorite is a mixture of domains with fine-grained groundmasses of pyroxene+olivine+plagioclase+opaques. Large fragmental plagioclase grains were observed throughout, shock melt veins are also present.
Geochemistry: (C. Agee and M.Spilde, UNM) olivine Fa47.7±9.5, Fe/Mn=95±7, n=11; pigeonite Fs41.9±9.8Wo4.9±3.3, Fe/Mn=61±8, n=12; augite Fs24.9±14.2Wo37.5±6.8, Fe/Mn=61±13, n=10; plagioclase An95.8±0.6Ab4.0±0.6Or0.2±0.1, n=7. Classification: Lunar (feldspathic breccia).
Specimens: 20.02g including a probe mount on deposit at UNM, Steve Arnold holds the main mass.
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