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Allan Hills A80111 | |||||||||||||||||||||
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Basic information | Name: Allan Hills A80111 This is an OFFICIAL meteorite name. Abbreviation: ALHA80111 This meteorite may also be called Allan Hills 80111 (ALH 80111) in publications. Observed fall: No Year found: 1980 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 42.4 g | ||||||||||||||||||||
Classification history: |
This is 1 of 11505 approved meteorites (plus 23 unapproved names) classified as H5. [show all] Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||
Writeup |
Writeup from AMN 5(1):
Sample No.: ALHA80111 Location: Allan Hills Field No.: 1016 Weight (gms): 42.4 Meteorite Type: H5 Chondrite
Physical Description: Carol Schwarz The specimen is totally covered with smooth thin black fusion crust. The bottom is shiny and iridescent while the remainder is dull with some polygonal fracturing. The interior of the stone is gray with some oxidation halos. Dimensions: 4.5 x 4 x 2.5 cm
Petrographic Description: Brian Mason Chondritic structure is moderately well developed, but the margins of many of the chondrules are diffuse, tending to merge with the granular ground-mass, which consists largely of olivine and pyroxene, with minor amounts of nickel-iron and troilite. Brown limonitic staining surrounds the nickel-iron grains. Microprobe analyses gave the following compositions: olivine, Fa18; orthopyroxene, Fs16. A little fine-grained plagioclase, An12, was analyzed, and one grain of merrillite. The meteorite is classified as an H5 chondrite. | ||||||||||||||||||||
Data from: MB76 Table 2 Line 501: |
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Catalogs: |
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References: | Published in Antarctic Meteorite Newsletter 5(1) (1982), JSC, Houston Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
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Geography: |
Statistics: This is 1 of 44400 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||
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Revision history: |
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