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Catalog Data

Expedition:
Antarctic Search for Meteorites (ANSMET)  Search this
Place:
Antarctica
Collection Date:
1981
Notes:
# NASA data for ALH 81316 Weathering: B Fracturing: B Fa: 29 mol % Fs: 23 mol %
Stone was originally grouped in the field with seven other fragments that comprise ALH81047. This individual fragment has a different classification from the other fragment that was classified and has been renumbered ALH8I316. This specimen is gray and contains small chondrules.
The small section (0.5 x 1.2 cm) shows a few relatively large chondrules (up to 3.6 mmacross) in a finely granular groundmass consisting largely of olivine and pyroxene, with a small amount of nickel-iron and sulfide. Some of the pyroxene is polysynthetically twinned clinobronzite. A little brown limonite is present, but otherwise the meteorite appears relatively unweathered. Microprobe analyses give the following compositions: olivine, Fa₂₉; pyroxene, Fs₂₃. The meteorite is classified as an LL4 chondrite.
Record Last Modified:
21 Sep 2023
Specimen Count:
1
Other Numbers:
Original meteorite number : ALHA81316,1
See more items in:
Mineral Sciences
Meteorites
Antarctic Polished Thin Section Collection
Digital Collection: Micrographs
Data Source:
NMNH - Mineral Sciences Dept.
GUID:
http://n2t.net/ark:/65665/33f88c756-32ed-46ac-b0c1-9b448a108b16
EDAN-URL:
edanmdm:nmnhmineralsciences_1035273