Allan Hills A81005

Allan Hills A81005 (ALH A81005)
TypeAchondrite
ClanLunar meteorite
GroupLunar anorthosite[1]
Parent bodyMoon
CompositionBreccia with plagioclase clasts.
Weathering gradeA/B
CountryAntarctica
RegionAllan Hills
Coordinates76°49′49″S 158°15′32″E / 76.83028°S 158.25889°E / -76.83028; 158.25889[1]
Observed fallNo
Found date17 January 1982[2]
TKW31.4 grams (1.11 oz)

Allan Hills A81005 or ALH A81005 (sometimes also named without the "A" in front of the number) was the first meteorite to be recognised as a lunar meteorite. The meteorite Yamato 791197 was discovered in 1979 but its lunar origin was not recognised until 1984.[3] ALH A81005 was found in 1982 in the Allan Hills at the end of the Transantarctic Mountains, during a meteorite gathering expedition (ANSMET).[1]

  1. ^ a b c "Allan Hills A81005". Meteoritical Society. Retrieved 11 January 2013.
  2. ^ Cite error: The named reference LMC ALH 81005 was invoked but never defined (see the help page).
  3. ^ "Lunar Meteorite: Yamato 791197 | Some Meteorite Information | Washington University in St. Louis". sites.wustl.edu. Retrieved 2024-08-04.